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42374641 is a prime number
BaseRepresentation
bin1010000110100…
…1010111110001
32221201212002011
42201221113301
541321442031
64112122521
71023115141
oct241512761
987655064
1042374641
1121a12771
1212236441
138a1866a
1458b0921
153ac06b1
hex28695f1

42374641 has 2 divisors, whose sum is σ = 42374642. Its totient is φ = 42374640.

The previous prime is 42374639. The next prime is 42374669. The reversal of 42374641 is 14647324.

42374641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33350625 + 9024016 = 5775^2 + 3004^2 .

It is a cyclic number.

It is not a de Polignac number, because 42374641 - 21 = 42374639 is a prime.

It is a super-2 number, since 2×423746412 = 3591220399757762, which contains 22 as substring.

Together with 42374639, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p2569063 and since 42374641 and 2569063 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (42374681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21187320 + 21187321.

It is an arithmetic number, because the mean of its divisors is an integer number (21187321).

Almost surely, 242374641 is an apocalyptic number.

It is an amenable number.

42374641 is a deficient number, since it is larger than the sum of its proper divisors (1).

42374641 is an equidigital number, since it uses as much as digits as its factorization.

42374641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 31.

The square root of 42374641 is about 6509.5807084635. The cubic root of 42374641 is about 348.6331479042.

The spelling of 42374641 in words is "forty-two million, three hundred seventy-four thousand, six hundred forty-one".