24378240 has 64 divisors (see below), whose sum is σ = 77711760. Its totient is φ = 6500352.

The previous prime is 24378209. The next prime is 24378253. The reversal of 24378240 is 4287342.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 24378198 and 24378207.

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, 4429 + ... + 8268.

Almost surely, 2^24378240 is an apocalyptic number.

24378240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24378240 is an abundant number, since it is smaller than the sum of its proper divisors (53333520).

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

24378240 is a wasteful number, since it uses less digits than its factorization.

24378240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12719 (or 12707 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 24378240 is about 4937.4325311846. The cubic root of 24378240 is about 289.9573460850.

The spelling of 24378240 in words is "twenty-four million, three hundred seventy-eight thousand, two hundred forty".