20572710 has 48 divisors (see below), whose sum is σ = 50480496. Its totient is φ = 5365696.

The previous prime is 20572709. The next prime is 20572729. The reversal of 20572710 is 1727502.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 104332 + ... + 104528.

It is an arithmetic number, because the mean of its divisors is an integer number (1051677).

Almost surely, 2^20572710 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20572710, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25240248).

20572710 is an abundant number, since it is smaller than the sum of its proper divisors (29907786).

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

20572710 is a wasteful number, since it uses less digits than its factorization.

20572710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 20572710 is about 4535.7149381327. The cubic root of 20572710 is about 274.0083734809.

The spelling of 20572710 in words is "twenty million, five hundred seventy-two thousand, seven hundred ten".