445451264 has 44 divisors (see below), whose sum is σ = 894768264. Its totient is φ = 221650944.

The previous prime is 445451263. The next prime is 445451269. The reversal of 445451264 is 462154544.

It is not an unprimeable number, because it can be changed into a prime (445451261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237659 + ... + 239525.

Almost surely, 2^445451264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445451264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (447384132).

445451264 is an abundant number, since it is smaller than the sum of its proper divisors (449317000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445451264 is a wasteful number, since it uses less digits than its factorization.

445451264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120 (or 2102 counting only the distinct ones).

The product of its digits is 76800, while the sum is 35.

The square root of 445451264 is about 21105.7163820610. The cubic root of 445451264 is about 763.7186541155.

The spelling of 445451264 in words is "four hundred forty-five million, four hundred fifty-one thousand, two hundred sixty-four".