428049924 has 48 divisors (see below), whose sum is σ = 1018519488. Its totient is φ = 139890688.

The previous prime is 428049911. The next prime is 428049949. The reversal of 428049924 is 429940824.

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, 134884 + ... + 138020.

It is an arithmetic number, because the mean of its divisors is an integer number (21219156).

Almost surely, 2^428049924 is an apocalyptic number.

It is an amenable number.

428049924 is an abundant number, since it is smaller than the sum of its proper divisors (590469564).

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

428049924 is a wasteful number, since it uses less digits than its factorization.

428049924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3364 (or 3362 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 428049924 is about 20689.3674142058. The cubic root of 428049924 is about 753.6415048633.

The spelling of 428049924 in words is "four hundred twenty-eight million, forty-nine thousand, nine hundred twenty-four".