428990472 has 32 divisors (see below), whose sum is σ = 1191640800. Its totient is φ = 142996752.

The previous prime is 428990467. The next prime is 428990473. The reversal of 428990472 is 274099824.

It is not an unprimeable number, because it can be changed into a prime (428990473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 992818 + ... + 993249.

It is an arithmetic number, because the mean of its divisors is an integer number (37238775).

Almost surely, 2^428990472 is an apocalyptic number.

It is an amenable number.

428990472 is an abundant number, since it is smaller than the sum of its proper divisors (762650328).

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

428990472 is a wasteful number, since it uses less digits than its factorization.

428990472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986082 (or 1986072 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 428990472 is about 20712.0851678434. The cubic root of 428990472 is about 754.1930896447.

The spelling of 428990472 in words is "four hundred twenty-eight million, nine hundred ninety thousand, four hundred seventy-two".