441808957 has 16 divisors (see below), whose sum is σ = 470468160. Its totient is φ = 413724672.

The previous prime is 441808951. The next prime is 441808973. The reversal of 441808957 is 759808144.

It is a cyclic number.

It is not a de Polignac number, because 441808957 - 2³ = 441808949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441808951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 844498 + ... + 845020.

It is an arithmetic number, because the mean of its divisors is an integer number (29404260).

Almost surely, 2^441808957 is an apocalyptic number.

It is an amenable number.

441808957 is a deficient number, since it is larger than the sum of its proper divisors (28659203).

441808957 is a wasteful number, since it uses less digits than its factorization.

441808957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972.

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 441808957 is about 21019.2520561508. The cubic root of 441808957 is about 761.6313968945.

The spelling of 441808957 in words is "four hundred forty-one million, eight hundred eight thousand, nine hundred fifty-seven".