445947120 has 100 divisors (see below), whose sum is σ = 1548862920. Its totient is φ = 118917504.

The previous prime is 445947107. The next prime is 445947137. The reversal of 445947120 is 21749544.

It is a happy number.

445947120 is a `hidden beast` number, since 44 + 594 + 7 + 1 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 27930 + ... + 40889.

Almost surely, 2^445947120 is an apocalyptic number.

445947120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

445947120 is an abundant number, since it is smaller than the sum of its proper divisors (1102915800).

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

445947120 is a wasteful number, since it uses less digits than its factorization.

445947120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68844 (or 68829 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 445947120 is about 21117.4600745449. The cubic root of 445947120 is about 764.0019279394.

The spelling of 445947120 in words is "four hundred forty-five million, nine hundred forty-seven thousand, one hundred twenty".