23740432 has 20 divisors (see below), whose sum is σ = 48703356. Its totient is φ = 11171840.

The previous prime is 23740427. The next prime is 23740463. The reversal of 23740432 is 23404732.

It can be written as a sum of positive squares in 2 ways, for example, as 21678336 + 2062096 = 4656^2 + 1436^2 .

It is a super-2 number, since 2×23740432² = 1127216223093248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23740397 and 23740406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43369 + ... + 43912.

Almost surely, 2^23740432 is an apocalyptic number.

It is an amenable number.

23740432 is an abundant number, since it is smaller than the sum of its proper divisors (24962924).

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

23740432 is a wasteful number, since it uses less digits than its factorization.

23740432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87306 (or 87300 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 23740432 is about 4872.4154174290. The cubic root of 23740432 is about 287.4062484487.

The spelling of 23740432 in words is "twenty-three million, seven hundred forty thousand, four hundred thirty-two".