232428 has 24 divisors (see below), whose sum is σ = 620032. Its totient is φ = 66384.

The previous prime is 232417. The next prime is 232433. The reversal of 232428 is 824232.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1300 + ... + 1467.

2²³²⁴²⁸ is an apocalyptic number.

232428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

232428 is an abundant number, since it is smaller than the sum of its proper divisors (387604).

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

232428 is a wasteful number, since it uses less digits than its factorization.

232428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781 (or 2779 counting only the distinct ones).

The product of its digits is 768, while the sum is 21.

The square root of 232428 is about 482.1078717466. The cubic root of 232428 is about 61.4840992669.

The spelling of 232428 in words is "two hundred thirty-two thousand, four hundred twenty-eight".