24725240 has 16 divisors (see below), whose sum is σ = 55631880. Its totient is φ = 9890080.

The previous prime is 24725231. The next prime is 24725269. The reversal of 24725240 is 4252742.

It is a super-2 number, since 2×24725240² = 1222674986115200, which contains 22 as substring.

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, 309026 + ... + 309105.

Almost surely, 2^24725240 is an apocalyptic number.

24725240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24725240 is an abundant number, since it is smaller than the sum of its proper divisors (30906640).

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

24725240 is a wasteful number, since it uses less digits than its factorization.

24725240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618142 (or 618138 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 24725240 is about 4972.4480892212. The cubic root of 24725240 is about 291.3266212109.

Adding to 24725240 its reverse (4252742), we get a palindrome (28977982).

The spelling of 24725240 in words is "twenty-four million, seven hundred twenty-five thousand, two hundred forty".