24778560 has 112 divisors (see below), whose sum is σ = 80320896. Its totient is φ = 6469632.

The previous prime is 24778549. The next prime is 24778573. The reversal of 24778560 is 6587742.

It is a super-2 number, since 2×24778560² = 1227954071347200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50637 + ... + 51123.

Almost surely, 2^24778560 is an apocalyptic number.

24778560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 24778560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40160448).

24778560 is an abundant number, since it is smaller than the sum of its proper divisors (55542336).

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

24778560 is a wasteful number, since it uses less digits than its factorization.

24778560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560 (or 550 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 24778560 is about 4977.8067459475. The cubic root of 24778560 is about 291.5358862207.

The spelling of 24778560 in words is "twenty-four million, seven hundred seventy-eight thousand, five hundred sixty".