445416231 has 24 divisors (see below), whose sum is σ = 658073856. Its totient is φ = 267714720.

The previous prime is 445416211. The next prime is 445416239. The reversal of 445416231 is 132614544.

It is not a de Polignac number, because 445416231 - 2⁵ = 445416199 is a prime.

It is a super-2 number, since 2×445416231² = 396791237676490722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445416239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11586 + ... + 32016.

It is an arithmetic number, because the mean of its divisors is an integer number (27419744).

Almost surely, 2^445416231 is an apocalyptic number.

445416231 is a deficient number, since it is larger than the sum of its proper divisors (212657625).

445416231 is a wasteful number, since it uses less digits than its factorization.

445416231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20503 (or 20490 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 445416231 is about 21104.8864247122. The cubic root of 445416231 is about 763.6986324288.

The spelling of 445416231 in words is "four hundred forty-five million, four hundred sixteen thousand, two hundred thirty-one".