404213032057 has 2 divisors, whose sum is σ = 404213032058. Its totient is φ = 404213032056.

The previous prime is 404213032051. The next prime is 404213032159. The reversal of 404213032057 is 750230312404.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 387607101561 + 16605930496 = 622581^2 + 128864^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404213032057 is a prime.

It is not a weakly prime, because it can be changed into another prime (404213032051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202106516028 + 202106516029.

It is an arithmetic number, because the mean of its divisors is an integer number (202106516029).

Almost surely, 2^404213032057 is an apocalyptic number.

It is an amenable number.

404213032057 is a deficient number, since it is larger than the sum of its proper divisors (1).

404213032057 is an equidigital number, since it uses as much as digits as its factorization.

404213032057 is an evil number, because the sum of its binary digits is even.

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

The spelling of 404213032057 in words is "four hundred four billion, two hundred thirteen million, thirty-two thousand, fifty-seven".