20045298 has 32 divisors (see below), whose sum is σ = 49343616. Its totient is φ = 5286528.

The previous prime is 20045297. The next prime is 20045303. The reversal of 20045298 is 89254002.

It is not an unprimeable number, because it can be changed into a prime (20045297) 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, 17811 + ... + 18902.

It is an arithmetic number, because the mean of its divisors is an integer number (1541988).

Almost surely, 2^20045298 is an apocalyptic number.

20045298 is an abundant number, since it is smaller than the sum of its proper divisors (29298318).

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

20045298 is a wasteful number, since it uses less digits than its factorization.

20045298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36738.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 20045298 is about 4477.1975609749. The cubic root of 20045298 is about 271.6465366209.

The spelling of 20045298 in words is "twenty million, forty-five thousand, two hundred ninety-eight".