23369440 has 24 divisors (see below), whose sum is σ = 55210680. Its totient is φ = 9347712.

The previous prime is 23369429. The next prime is 23369461. The reversal of 23369440 is 4496332.

It is a super-2 number, since 2×23369440² = 1092261451827200, which contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 72870 + ... + 73189.

It is an arithmetic number, because the mean of its divisors is an integer number (2300445).

Almost surely, 2^23369440 is an apocalyptic number.

23369440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23369440 is an abundant number, since it is smaller than the sum of its proper divisors (31841240).

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

23369440 is a wasteful number, since it uses less digits than its factorization.

23369440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146074 (or 146066 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 23369440 is about 4834.1948657455. The cubic root of 23369440 is about 285.9012813970.

The spelling of 23369440 in words is "twenty-three million, three hundred sixty-nine thousand, four hundred forty".