20572960 has 48 divisors (see below), whose sum is σ = 49315392. Its totient is φ = 8108800.

The previous prime is 20572931. The next prime is 20573011. The reversal of 20572960 is 6927502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10455 + ... + 12265.

It is an arithmetic number, because the mean of its divisors is an integer number (1027404).

Almost surely, 2^20572960 is an apocalyptic number.

20572960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20572960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24657696).

20572960 is an abundant number, since it is smaller than the sum of its proper divisors (28742432).

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

20572960 is a wasteful number, since it uses less digits than its factorization.

20572960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897 (or 1889 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 20572960 is about 4535.7424971001. The cubic root of 20572960 is about 274.0094833949.

The spelling of 20572960 in words is "twenty million, five hundred seventy-two thousand, nine hundred sixty".