445400672 has 24 divisors (see below), whose sum is σ = 900584496. Its totient is φ = 216680832.

The previous prime is 445400651. The next prime is 445400677. The reversal of 445400672 is 276004544.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445400677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186908 + ... + 189275.

It is an arithmetic number, because the mean of its divisors is an integer number (37524354).

Almost surely, 2^445400672 is an apocalyptic number.

It is an amenable number.

445400672 is an abundant number, since it is smaller than the sum of its proper divisors (455183824).

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

445400672 is a wasteful number, since it uses less digits than its factorization.

445400672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376230 (or 376222 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 445400672 is about 21104.5178101751. The cubic root of 445400672 is about 763.6897399782.

The spelling of 445400672 in words is "four hundred forty-five million, four hundred thousand, six hundred seventy-two".