445400232 has 16 divisors (see below), whose sum is σ = 1113500640. Its totient is φ = 148466736.

The previous prime is 445400213. The next prime is 445400243. The reversal of 445400232 is 232004544.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 18558343 = 445400232 / (4 + 4 + 5 + 4 + 0 + 0 + 2 + 3 + 2).

It is an unprimeable number.

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, 9279148 + ... + 9279195.

It is an arithmetic number, because the mean of its divisors is an integer number (69593790).

Almost surely, 2^445400232 is an apocalyptic number.

It is an amenable number.

445400232 is an abundant number, since it is smaller than the sum of its proper divisors (668100408).

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

445400232 is a wasteful number, since it uses less digits than its factorization.

445400232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18558352 (or 18558348 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 445400232 is about 21104.5073858643. The cubic root of 445400232 is about 763.6894885016.

Adding to 445400232 its reverse (232004544), we get a palindrome (677404776).

The spelling of 445400232 in words is "four hundred forty-five million, four hundred thousand, two hundred thirty-two".