20624898 has 32 divisors (see below), whose sum is σ = 47324160. Its totient is φ = 5870160.

The previous prime is 20624881. The next prime is 20624911. The reversal of 20624898 is 89842602.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12273 + ... + 13851.

It is an arithmetic number, because the mean of its divisors is an integer number (1478880).

Almost surely, 2^20624898 is an apocalyptic number.

20624898 is an abundant number, since it is smaller than the sum of its proper divisors (26699262).

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

20624898 is a wasteful number, since it uses less digits than its factorization.

20624898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 20624898 is about 4541.4643013019. The cubic root of 20624898 is about 274.2398755399.

The spelling of 20624898 in words is "twenty million, six hundred twenty-four thousand, eight hundred ninety-eight".