20453802 has 16 divisors (see below), whose sum is σ = 41368320. Its totient is φ = 6741152.

The previous prime is 20453777. The next prime is 20453809. The reversal of 20453802 is 20835402.

It is not an unprimeable number, because it can be changed into a prime (20453809) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 18618 + ... + 19685.

It is an arithmetic number, because the mean of its divisors is an integer number (2585520).

Almost surely, 2^20453802 is an apocalyptic number.

20453802 is an abundant number, since it is smaller than the sum of its proper divisors (20914518).

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

20453802 is a wasteful number, since it uses less digits than its factorization.

20453802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38397.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 20453802 is about 4522.5879759271. The cubic root of 20453802 is about 273.4794403608.

The spelling of 20453802 in words is "twenty million, four hundred fifty-three thousand, eight hundred two".