445920251020 has 36 divisors (see below), whose sum is σ = 969836815584. Its totient is φ = 172217469760.

The previous prime is 445920250987. The next prime is 445920251041. The reversal of 445920251020 is 20152029544.

It is a happy number.

It is a super-2 number, since 2×445920251020² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13238836 + ... + 13272475.

It is an arithmetic number, because the mean of its divisors is an integer number (26939911544).

Almost surely, 2^445920251020 is an apocalyptic number.

It is an amenable number.

445920251020 is an abundant number, since it is smaller than the sum of its proper divisors (523916564564).

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

445920251020 is a wasteful number, since it uses less digits than its factorization.

445920251020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26511378 (or 26511347 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 445920251020 in words is "four hundred forty-five billion, nine hundred twenty million, two hundred fifty-one thousand, twenty".