402046057 has 4 divisors (see below), whose sum is σ = 459481216. Its totient is φ = 344610900.

The previous prime is 402046013. The next prime is 402046063. The reversal of 402046057 is 750640204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 402046057 - 2⁷ = 402045929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402076057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28717569 + ... + 28717582.

It is an arithmetic number, because the mean of its divisors is an integer number (114870304).

Almost surely, 2^402046057 is an apocalyptic number.

402046057 is the 11577-th hex number.

It is an amenable number.

402046057 is a deficient number, since it is larger than the sum of its proper divisors (57435159).

402046057 is an equidigital number, since it uses as much as digits as its factorization.

402046057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57435158.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 402046057 is about 20051.0861800552. The cubic root of 402046057 is about 738.0604535002.

The spelling of 402046057 in words is "four hundred two million, forty-six thousand, fifty-seven".