23256828 has 48 divisors (see below), whose sum is σ = 68911360. Its totient is φ = 6644592.

The previous prime is 23256809. The next prime is 23256829. The reversal of 23256828 is 82865232.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 23256792 and 23256801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23256829) 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, 14626 + ... + 16137.

Almost surely, 2^23256828 is an apocalyptic number.

23256828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23256828 is an abundant number, since it is smaller than the sum of its proper divisors (45654532).

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

23256828 is a wasteful number, since it uses less digits than its factorization.

23256828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30783 (or 30775 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 23256828 is about 4822.5333591381. The cubic root of 23256828 is about 285.4413107556.

The spelling of 23256828 in words is "twenty-three million, two hundred fifty-six thousand, eight hundred twenty-eight".