23198656 has 28 divisors (see below), whose sum is σ = 49577752. Its totient is φ = 10706688.

The previous prime is 23198653. The next prime is 23198657. The reversal of 23198656 is 65689132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23198653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13110 + ... + 14773.

It is an arithmetic number, because the mean of its divisors is an integer number (1770634).

Almost surely, 2^23198656 is an apocalyptic number.

23198656 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

23198656 is an abundant number, since it is smaller than the sum of its proper divisors (26379096).

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

23198656 is a wasteful number, since it uses less digits than its factorization.

23198656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27908 (or 27898 counting only the distinct ones).

The product of its digits is 77760, while the sum is 40.

The square root of 23198656 is about 4816.4983130901. The cubic root of 23198656 is about 285.2031218451.

The spelling of 23198656 in words is "twenty-three million, one hundred ninety-eight thousand, six hundred fifty-six".