24990020 has 24 divisors (see below), whose sum is σ = 57250368. Its totient is φ = 9087200.

The previous prime is 24989971. The next prime is 24990037. The reversal of 24990020 is 2009942.

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, 56576 + ... + 57015.

It is an arithmetic number, because the mean of its divisors is an integer number (2385432).

Almost surely, 2^24990020 is an apocalyptic number.

24990020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24990020 is an abundant number, since it is smaller than the sum of its proper divisors (32260348).

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

24990020 is a wasteful number, since it uses less digits than its factorization.

24990020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113611 (or 113609 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 24990020 is about 4999.0019003797. The cubic root of 24990020 is about 292.3628597133.

Adding to 24990020 its reverse (2009942), we get a palindrome (26999962).

The spelling of 24990020 in words is "twenty-four million, nine hundred ninety thousand, twenty".