42046357 has 2 divisors, whose sum is σ = 42046358. Its totient is φ = 42046356.

The previous prime is 42046349. The next prime is 42046363. The reversal of 42046357 is 75364024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40627876 + 1418481 = 6374^2 + 1191^2 .

It is a cyclic number.

It is not a de Polignac number, because 42046357 - 2³ = 42046349 is a prime.

It is a super-2 number, since 2×42046357² = 3535792273942898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42046307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21023178 + 21023179.

It is an arithmetic number, because the mean of its divisors is an integer number (21023179).

Almost surely, 2^42046357 is an apocalyptic number.

It is an amenable number.

42046357 is a deficient number, since it is larger than the sum of its proper divisors (1).

42046357 is an equidigital number, since it uses as much as digits as its factorization.

42046357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 42046357 is about 6484.3162322638. The cubic root of 42046357 is about 347.7305049003.

The spelling of 42046357 in words is "forty-two million, forty-six thousand, three hundred fifty-seven".