404441057 has 2 divisors, whose sum is σ = 404441058. Its totient is φ = 404441056.

The previous prime is 404441029. The next prime is 404441071. The reversal of 404441057 is 750144404.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 245580241 + 158860816 = 15671^2 + 12604^2 .

It is a cyclic number.

It is not a de Polignac number, because 404441057 - 2⁸ = 404440801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (404441017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202220528 + 202220529.

It is an arithmetic number, because the mean of its divisors is an integer number (202220529).

Almost surely, 2^404441057 is an apocalyptic number.

It is an amenable number.

404441057 is a deficient number, since it is larger than the sum of its proper divisors (1).

404441057 is an equidigital number, since it uses as much as digits as its factorization.

404441057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 404441057 is about 20110.7199523040. The cubic root of 404441057 is about 739.5231021490.

The spelling of 404441057 in words is "four hundred four million, four hundred forty-one thousand, fifty-seven".