445465020 has 192 divisors, whose sum is σ = 1674925056. Its totient is φ = 85432320.

The previous prime is 445465019. The next prime is 445465057. The reversal of 445465020 is 20564544.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56352 + ... + 63768.

It is an arithmetic number, because the mean of its divisors is an integer number (8723568).

Almost surely, 2^445465020 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 445465020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (837462528).

445465020 is an abundant number, since it is smaller than the sum of its proper divisors (1229460036).

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

445465020 is a wasteful number, since it uses less digits than its factorization.

445465020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7460 (or 7458 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 445465020 is about 21106.0422628213. The cubic root of 445465020 is about 763.7265155110.

The spelling of 445465020 in words is "four hundred forty-five million, four hundred sixty-five thousand, twenty".