23212398 has 24 divisors (see below), whose sum is σ = 51030504. Its totient is φ = 7033840.

The previous prime is 23212381. The next prime is 23212403. The reversal of 23212398 is 89321232.

It is a happy number.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15261 + ... + 16712.

It is an arithmetic number, because the mean of its divisors is an integer number (2126271).

Almost surely, 2^23212398 is an apocalyptic number.

23212398 is an abundant number, since it is smaller than the sum of its proper divisors (27818106).

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

23212398 is a wasteful number, since it uses less digits than its factorization.

23212398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32000 (or 31989 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 23212398 is about 4817.9246569451. The cubic root of 23212398 is about 285.2594252172.

It can be divided in two parts, 232123 and 98, that added together give a triangular number (232221 = T₆₈₁).

The spelling of 23212398 in words is "twenty-three million, two hundred twelve thousand, three hundred ninety-eight".