23530740 has 48 divisors (see below), whose sum is σ = 69357120. Its totient is φ = 5944320.

The previous prime is 23530739. The next prime is 23530763. The reversal of 23530740 is 4703532.

It is a self number, because there is not a number n which added to its sum of digits gives 23530740.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9181 + ... + 11460.

It is an arithmetic number, because the mean of its divisors is an integer number (1444940).

Almost surely, 2^23530740 is an apocalyptic number.

23530740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23530740 is an abundant number, since it is smaller than the sum of its proper divisors (45826380).

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

23530740 is a wasteful number, since it uses less digits than its factorization.

23530740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20672 (or 20670 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 23530740 is about 4850.8494101549. The cubic root of 23530740 is about 286.5575541717.

The spelling of 23530740 in words is "twenty-three million, five hundred thirty thousand, seven hundred forty".