42357433 has 2 divisors, whose sum is σ = 42357434. Its totient is φ = 42357432.

The previous prime is 42357431. The next prime is 42357449. The reversal of 42357433 is 33475324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42341049 + 16384 = 6507^2 + 128^2 .

It is a cyclic number.

It is not a de Polignac number, because 42357433 - 2¹ = 42357431 is a prime.

Together with 42357431, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 42357395 and 42357404.

It is not a weakly prime, because it can be changed into another prime (42357431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21178716 + 21178717.

It is an arithmetic number, because the mean of its divisors is an integer number (21178717).

Almost surely, 2^42357433 is an apocalyptic number.

It is an amenable number.

42357433 is a deficient number, since it is larger than the sum of its proper divisors (1).

42357433 is an equidigital number, since it uses as much as digits as its factorization.

42357433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 31.

The square root of 42357433 is about 6508.2588301327. The cubic root of 42357433 is about 348.5859491446.

The spelling of 42357433 in words is "forty-two million, three hundred fifty-seven thousand, four hundred thirty-three".