24798990 has 64 divisors (see below), whose sum is σ = 63302400. Its totient is φ = 6200064.

The previous prime is 24798967. The next prime is 24799067. The reversal of 24798990 is 9989742.

It is a happy number.

It is a super-2 number, since 2×24798990² = 1229979810040200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79074 + ... + 79386.

It is an arithmetic number, because the mean of its divisors is an integer number (989100).

Almost surely, 2^24798990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 24798990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31651200).

24798990 is an abundant number, since it is smaller than the sum of its proper divisors (38503410).

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

24798990 is a wasteful number, since it uses less digits than its factorization.

24798990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481.

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 24798990 is about 4979.8584317227. The cubic root of 24798990 is about 291.6159882924.

The spelling of 24798990 in words is "twenty-four million, seven hundred ninety-eight thousand, nine hundred ninety".