24778152 has 96 divisors (see below), whose sum is σ = 77388480. Its totient is φ = 7015680.

The previous prime is 24778121. The next prime is 24778157. The reversal of 24778152 is 25187742.

It is a super-2 number, since 2×24778152² = 1227913633070208, which contains 22 as substring.

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 (24778157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106228 + ... + 106460.

It is an arithmetic number, because the mean of its divisors is an integer number (806130).

Almost surely, 2^24778152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 24778152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38694240).

24778152 is an abundant number, since it is smaller than the sum of its proper divisors (52610328).

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

24778152 is a wasteful number, since it uses less digits than its factorization.

24778152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463 (or 456 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 24778152 is about 4977.7657638744. The cubic root of 24778152 is about 291.5342860834.

The spelling of 24778152 in words is "twenty-four million, seven hundred seventy-eight thousand, one hundred fifty-two".