236428 has 6 divisors (see below), whose sum is σ = 413756. Its totient is φ = 118212.

The previous prime is 236407. The next prime is 236429. The reversal of 236428 is 824632.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (236429) by changing a digit.

236428 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29550 + ... + 29557.

2²³⁶⁴²⁸ is an apocalyptic number.

It is an amenable number.

236428 is a deficient number, since it is larger than the sum of its proper divisors (177328).

236428 is a wasteful number, since it uses less digits than its factorization.

236428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59111 (or 59109 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 236428 is about 486.2386245456. The cubic root of 236428 is about 61.8348012881.

The spelling of 236428 in words is "two hundred thirty-six thousand, four hundred twenty-eight".