23236428 has 48 divisors (see below), whose sum is σ = 55623680. Its totient is φ = 7547904.

The previous prime is 23236427. The next prime is 23236457. The reversal of 23236428 is 82463232.

It is a junction number, because it is equal to n+sod(n) for n = 23236395 and 23236404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23236427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120300 + ... + 120492.

Almost surely, 2^23236428 is an apocalyptic number.

It is an amenable number.

23236428 is an abundant number, since it is smaller than the sum of its proper divisors (32387252).

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

23236428 is a wasteful number, since it uses less digits than its factorization.

23236428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 404 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 23236428 is about 4820.4178242140. The cubic root of 23236428 is about 285.3578269411.

The spelling of 23236428 in words is "twenty-three million, two hundred thirty-six thousand, four hundred twenty-eight".