23514640 has 40 divisors (see below), whose sum is σ = 54882648. Its totient is φ = 9369600.

The previous prime is 23514619. The next prime is 23514677. The reversal of 23514640 is 4641532.

It can be written as a sum of positive squares in 4 ways, for example, as 16289296 + 7225344 = 4036^2 + 2688^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

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 7 ways as a sum of consecutive naturals, for example, 31714 + ... + 32446.

Almost surely, 2^23514640 is an apocalyptic number.

23514640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23514640 is an abundant number, since it is smaller than the sum of its proper divisors (31368008).

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

23514640 is a wasteful number, since it uses less digits than its factorization.

23514640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147 (or 1141 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 23514640 is about 4849.1896230195. The cubic root of 23514640 is about 286.4921839476.

The spelling of 23514640 in words is "twenty-three million, five hundred fourteen thousand, six hundred forty".