23170928 has 40 divisors (see below), whose sum is σ = 49322736. Its totient is φ = 10457600.

The previous prime is 23170909. The next prime is 23170967. The reversal of 23170928 is 82907132.

It is a junction number, because it is equal to n+sod(n) for n = 23170894 and 23170903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30068 + ... + 30828.

Almost surely, 2^23170928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23170928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24661368).

23170928 is an abundant number, since it is smaller than the sum of its proper divisors (26151808).

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

23170928 is a wasteful number, since it uses less digits than its factorization.

23170928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953 (or 947 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 23170928 is about 4813.6190127595. The cubic root of 23170928 is about 285.0894476599.

The spelling of 23170928 in words is "twenty-three million, one hundred seventy thousand, nine hundred twenty-eight".