20442700 has 18 divisors (see below), whose sum is σ = 44360876. Its totient is φ = 8177040.

The previous prime is 20442691. The next prime is 20442707. The reversal of 20442700 is 724402.

It is not an unprimeable number, because it can be changed into a prime (20442707) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 102114 + ... + 102313.

Almost surely, 2^20442700 is an apocalyptic number.

20442700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20442700 is an abundant number, since it is smaller than the sum of its proper divisors (23918176).

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

20442700 is a wasteful number, since it uses less digits than its factorization.

20442700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204441 (or 204434 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 20442700 is about 4521.3604147424. The cubic root of 20442700 is about 273.4299513018.

The spelling of 20442700 in words is "twenty million, four hundred forty-two thousand, seven hundred".