23712340 has 12 divisors (see below), whose sum is σ = 49795956. Its totient is φ = 9484928.

The previous prime is 23712319. The next prime is 23712383. The reversal of 23712340 is 4321732.

It can be written as a sum of positive squares in 2 ways, for example, as 6290064 + 17422276 = 2508^2 + 4174^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592789 + ... + 592828.

It is an arithmetic number, because the mean of its divisors is an integer number (4149663).

Almost surely, 2^23712340 is an apocalyptic number.

23712340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23712340 is an abundant number, since it is smaller than the sum of its proper divisors (26083616).

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

23712340 is a wasteful number, since it uses less digits than its factorization.

23712340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185626 (or 1185624 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 23712340 is about 4869.5318050096. The cubic root of 23712340 is about 287.2928413155.

The spelling of 23712340 in words is "twenty-three million, seven hundred twelve thousand, three hundred forty".