23198136 has 32 divisors (see below), whose sum is σ = 62457360. Its totient is φ = 7137792.

The previous prime is 23198111. The next prime is 23198167. The reversal of 23198136 is 63189132.

It is a junction number, because it is equal to n+sod(n) for n = 23198097 and 23198106.

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, 36865 + ... + 37488.

Almost surely, 2^23198136 is an apocalyptic number.

23198136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

23198136 is an abundant number, since it is smaller than the sum of its proper divisors (39259224).

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

23198136 is a wasteful number, since it uses less digits than its factorization.

23198136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74375 (or 74371 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 23198136 is about 4816.4443316621. Note that the first 3 decimals coincide. The cubic root of 23198136 is about 285.2009908779.

The spelling of 23198136 in words is "twenty-three million, one hundred ninety-eight thousand, one hundred thirty-six".