23232390 has 32 divisors (see below), whose sum is σ = 56111616. Its totient is φ = 6156000.

The previous prime is 23232379. The next prime is 23232403. The reversal of 23232390 is 9323232.

It is a super-2 number, since 2×23232390² = 1079487890224200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23232390.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2515 + ... + 7265.

It is an arithmetic number, because the mean of its divisors is an integer number (1753488).

Almost surely, 2^23232390 is an apocalyptic number.

23232390 is an abundant number, since it is smaller than the sum of its proper divisors (32879226).

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

23232390 is a wasteful number, since it uses less digits than its factorization.

23232390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4924.

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 23232390 is about 4819.9989626555. The cubic root of 23232390 is about 285.3412962641.

The spelling of 23232390 in words is "twenty-three million, two hundred thirty-two thousand, three hundred ninety".