24890149 has 4 divisors (see below), whose sum is σ = 25748460. Its totient is φ = 24031840.

The previous prime is 24890143. The next prime is 24890161. The reversal of 24890149 is 94109842.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19201924 + 5688225 = 4382^2 + 2385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24890149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24890143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429112 + ... + 429169.

It is an arithmetic number, because the mean of its divisors is an integer number (6437115).

Almost surely, 2^24890149 is an apocalyptic number.

24890149 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

24890149 is a deficient number, since it is larger than the sum of its proper divisors (858311).

24890149 is an equidigital number, since it uses as much as digits as its factorization.

24890149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858310.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 24890149 is about 4989.0028061728. The cubic root of 24890149 is about 291.9728699695.

The spelling of 24890149 in words is "twenty-four million, eight hundred ninety thousand, one hundred forty-nine".