428166232 has 24 divisors (see below), whose sum is σ = 869319540. Its totient is φ = 197614560.

The previous prime is 428166217. The next prime is 428166253. The reversal of 428166232 is 232661824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 156994 + ... + 159697.

Almost surely, 2^428166232 is an apocalyptic number.

It is an amenable number.

428166232 is an abundant number, since it is smaller than the sum of its proper divisors (441153308).

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

428166232 is a wasteful number, since it uses less digits than its factorization.

428166232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316723 (or 316706 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 428166232 is about 20692.1780390562. The cubic root of 428166232 is about 753.7097574926.

The spelling of 428166232 in words is "four hundred twenty-eight million, one hundred sixty-six thousand, two hundred thirty-two".