24381972 has 30 divisors (see below), whose sum is σ = 63740138. Its totient is φ = 8127216.

The previous prime is 24381971. The next prime is 24381977. The reversal of 24381972 is 27918342.

It can be written as a sum of positive squares in only one way, i.e., 22410756 + 1971216 = 4734^2 + 1404^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24381971) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 37303 + ... + 37950.

Almost surely, 2^24381972 is an apocalyptic number.

It is an amenable number.

24381972 is an abundant number, since it is smaller than the sum of its proper divisors (39358166).

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

24381972 is a wasteful number, since it uses less digits than its factorization.

24381972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75269 (or 75258 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 24381972 is about 4937.8104459365. The cubic root of 24381972 is about 289.9721415966.

It can be divided in two parts, 243 and 81972, that added together give a triangular number (82215 = T₄₀₅).

The spelling of 24381972 in words is "twenty-four million, three hundred eighty-one thousand, nine hundred seventy-two".