20298624 has 32 divisors (see below), whose sum is σ = 53919240. Its totient is φ = 6766080.

The previous prime is 20298613. The next prime is 20298643. The reversal of 20298624 is 42689202.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26047 + ... + 26814.

Almost surely, 2^20298624 is an apocalyptic number.

20298624 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20298624 is an abundant number, since it is smaller than the sum of its proper divisors (33620616).

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

20298624 is an equidigital number, since it uses as much as digits as its factorization.

20298624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52878 (or 52866 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 20298624 is about 4505.3994273538. The cubic root of 20298624 is about 272.7860766938.

The spelling of 20298624 in words is "twenty million, two hundred ninety-eight thousand, six hundred twenty-four".