24902990 has 32 divisors (see below), whose sum is σ = 52484544. Its totient is φ = 8328960.

The previous prime is 24902987. The next prime is 24902993. The reversal of 24902990 is 9920942.

It is an interprime number because it is at equal distance from previous prime (24902987) and next prime (24902993).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 24902990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24902993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1469 + ... + 7208.

It is an arithmetic number, because the mean of its divisors is an integer number (1640142).

Almost surely, 2^24902990 is an apocalyptic number.

24902990 is an abundant number, since it is smaller than the sum of its proper divisors (27581554).

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

24902990 is a wasteful number, since it uses less digits than its factorization.

24902990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8732.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 24902990 is about 4990.2895707564. The cubic root of 24902990 is about 292.0230716117.

The spelling of 24902990 in words is "twenty-four million, nine hundred two thousand, nine hundred ninety".