23742320 has 40 divisors (see below), whose sum is σ = 63088224. Its totient is φ = 8140032.

The previous prime is 23742293. The next prime is 23742361. The reversal of 23742320 is 2324732.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20639 + ... + 21758.

Almost surely, 2^23742320 is an apocalyptic number.

23742320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23742320 is an abundant number, since it is smaller than the sum of its proper divisors (39345904).

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

23742320 is a wasteful number, since it uses less digits than its factorization.

23742320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42417 (or 42411 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 23742320 is about 4872.6091573201. The cubic root of 23742320 is about 287.4138670774.

The spelling of 23742320 in words is "twenty-three million, seven hundred forty-two thousand, three hundred twenty".