445044432 has 80 divisors (see below), whose sum is σ = 1356357632. Its totient is φ = 123050880.

The previous prime is 445044409. The next prime is 445044499. The reversal of 445044432 is 234440544.

It is a self number, because there is not a number n which added to its sum of digits gives 445044432.

It is a congruent number.

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, 10948 + ... + 31779.

Almost surely, 2^445044432 is an apocalyptic number.

445044432 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

445044432 is an abundant number, since it is smaller than the sum of its proper divisors (911313200).

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

445044432 is a wasteful number, since it uses less digits than its factorization.

445044432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42776 (or 42770 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 30.

The square root of 445044432 is about 21096.0762228430. The cubic root of 445044432 is about 763.4860811048.

Adding to 445044432 its reverse (234440544), we get a palindrome (679484976).

The spelling of 445044432 in words is "four hundred forty-five million, forty-four thousand, four hundred thirty-two".