445918740 has 24 divisors (see below), whose sum is σ = 1248572640. Its totient is φ = 118911648.

The previous prime is 445918727. The next prime is 445918757. The reversal of 445918740 is 47819544.

It is a junction number, because it is equal to n+sod(n) for n = 445918692 and 445918701.

It is a congruent number.

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, 3715930 + ... + 3716049.

It is an arithmetic number, because the mean of its divisors is an integer number (52023860).

Almost surely, 2^445918740 is an apocalyptic number.

It is an amenable number.

445918740 is an abundant number, since it is smaller than the sum of its proper divisors (802653900).

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

445918740 is a wasteful number, since it uses less digits than its factorization.

445918740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7431991 (or 7431989 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 445918740 is about 21116.7881080433. The cubic root of 445918740 is about 763.9857206107.

The spelling of 445918740 in words is "four hundred forty-five million, nine hundred eighteen thousand, seven hundred forty".