23421996 has 36 divisors (see below), whose sum is σ = 63761152. Its totient is φ = 7206624.

The previous prime is 23421989. The next prime is 23422013. The reversal of 23421996 is 69912432.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 23421996.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24556 + ... + 25491.

Almost surely, 2^23421996 is an apocalyptic number.

23421996 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

23421996 is an abundant number, since it is smaller than the sum of its proper divisors (40339156).

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

23421996 is a wasteful number, since it uses less digits than its factorization.

23421996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50070 (or 50065 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 23421996 is about 4839.6276716293. The cubic root of 23421996 is about 286.1154439648.

The spelling of 23421996 in words is "twenty-three million, four hundred twenty-one thousand, nine hundred ninety-six".