20572700 has 36 divisors (see below), whose sum is σ = 44840880. Its totient is φ = 8192640.

The previous prime is 20572697. The next prime is 20572709. The reversal of 20572700 is 727502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20572709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40649 + ... + 41151.

It is an arithmetic number, because the mean of its divisors is an integer number (1245580).

Almost surely, 2^20572700 is an apocalyptic number.

20572700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20572700 is an abundant number, since it is smaller than the sum of its proper divisors (24268180).

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

20572700 is a wasteful number, since it uses less digits than its factorization.

20572700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926 (or 919 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 23.

The square root of 20572700 is about 4535.7138357705. The cubic root of 20572700 is about 274.0083290842.

The spelling of 20572700 in words is "twenty million, five hundred seventy-two thousand, seven hundred".