445275520 has 32 divisors (see below), whose sum is σ = 1064488320. Its totient is φ = 178109952.

The previous prime is 445275503. The next prime is 445275527. The reversal of 445275520 is 25572544.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×445275520² = 396540577422540800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445275527) 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, 347232 + ... + 348511.

It is an arithmetic number, because the mean of its divisors is an integer number (33265260).

Almost surely, 2^445275520 is an apocalyptic number.

445275520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

445275520 is an abundant number, since it is smaller than the sum of its proper divisors (619212800).

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

445275520 is an equidigital number, since it uses as much as digits as its factorization.

445275520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695762 (or 695750 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 34.

The square root of 445275520 is about 21101.5525495164. The cubic root of 445275520 is about 763.6182041995.

The spelling of 445275520 in words is "four hundred forty-five million, two hundred seventy-five thousand, five hundred twenty".