445904001 has 8 divisors (see below), whose sum is σ = 660598560. Its totient is φ = 297269316.

The previous prime is 445903981. The next prime is 445904003. The reversal of 445904001 is 100409544.

It is not a de Polignac number, because 445904001 - 2⁷ = 445903873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 16514963 = 445904001 / (4 + 4 + 5 + 9 + 0 + 4 + 0 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (445904003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8257455 + ... + 8257508.

It is an arithmetic number, because the mean of its divisors is an integer number (82574820).

Almost surely, 2^445904001 is an apocalyptic number.

It is an amenable number.

445904001 is a deficient number, since it is larger than the sum of its proper divisors (214694559).

445904001 is a wasteful number, since it uses less digits than its factorization.

445904001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16514972 (or 16514966 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 445904001 is about 21116.4391174270. The cubic root of 445904001 is about 763.9773031506.

The spelling of 445904001 in words is "four hundred forty-five million, nine hundred four thousand, one".