445495820 has 48 divisors (see below), whose sum is σ = 1166393088. Its totient is φ = 138855360.

The previous prime is 445495801. The next prime is 445495837. The reversal of 445495820 is 28594544.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143102 + ... + 146181.

It is an arithmetic number, because the mean of its divisors is an integer number (24299856).

Almost surely, 2^445495820 is an apocalyptic number.

It is an amenable number.

445495820 is an abundant number, since it is smaller than the sum of its proper divisors (720897268).

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

445495820 is a wasteful number, since it uses less digits than its factorization.

445495820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289310 (or 289308 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 41.

The square root of 445495820 is about 21106.7718990849. The cubic root of 445495820 is about 763.7441167693.

The spelling of 445495820 in words is "four hundred forty-five million, four hundred ninety-five thousand, eight hundred twenty".