428744432 has 10 divisors (see below), whose sum is σ = 830692368. Its totient is φ = 214372208.

The previous prime is 428744431. The next prime is 428744467. The reversal of 428744432 is 234447824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428744431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13398248 + ... + 13398279.

Almost surely, 2^428744432 is an apocalyptic number.

It is an amenable number.

428744432 is a deficient number, since it is larger than the sum of its proper divisors (401947936).

428744432 is a wasteful number, since it uses less digits than its factorization.

428744432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26796535 (or 26796529 counting only the distinct ones).

The product of its digits is 172032, while the sum is 38.

The square root of 428744432 is about 20706.1447884438. The cubic root of 428744432 is about 754.0488773086.

The spelling of 428744432 in words is "four hundred twenty-eight million, seven hundred forty-four thousand, four hundred thirty-two".