445320620 has 24 divisors (see below), whose sum is σ = 935595024. Its totient is φ = 178047936.

The previous prime is 445320619. The next prime is 445320643. The reversal of 445320620 is 26023544.

It is a self number, because there is not a number n which added to its sum of digits gives 445320620.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62774 + ... + 69506.

It is an arithmetic number, because the mean of its divisors is an integer number (38983126).

Almost surely, 2^445320620 is an apocalyptic number.

It is an amenable number.

445320620 is an abundant number, since it is smaller than the sum of its proper divisors (490274404).

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

445320620 is a wasteful number, since it uses less digits than its factorization.

445320620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10049 (or 10047 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 445320620 is about 21102.6211642061. The cubic root of 445320620 is about 763.6439845062.

The spelling of 445320620 in words is "four hundred forty-five million, three hundred twenty thousand, six hundred twenty".