23198916 has 24 divisors (see below), whose sum is σ = 58295104. Its totient is φ = 7138080.

The previous prime is 23198909. The next prime is 23198941. The reversal of 23198916 is 61989132.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 74200 + ... + 74511.

Almost surely, 2^23198916 is an apocalyptic number.

23198916 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

23198916 is an abundant number, since it is smaller than the sum of its proper divisors (35096188).

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

23198916 is a wasteful number, since it uses less digits than its factorization.

23198916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148731 (or 148729 counting only the distinct ones).

The product of its digits is 23328, while the sum is 39.

The square root of 23198916 is about 4816.5253035773. The cubic root of 23198916 is about 285.2041873168.

The spelling of 23198916 in words is "twenty-three million, one hundred ninety-eight thousand, nine hundred sixteen".