20752972 has 6 divisors (see below), whose sum is σ = 36317708. Its totient is φ = 10376484.

The previous prime is 20752957. The next prime is 20752973. The reversal of 20752972 is 27925702.

It is not an unprimeable number, because it can be changed into a prime (20752973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2594118 + ... + 2594125.

Almost surely, 2^20752972 is an apocalyptic number.

It is an amenable number.

20752972 is a deficient number, since it is larger than the sum of its proper divisors (15564736).

20752972 is a wasteful number, since it uses less digits than its factorization.

20752972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5188247 (or 5188245 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 20752972 is about 4555.5429972727. The cubic root of 20752972 is about 274.8063518240.

The spelling of 20752972 in words is "twenty million, seven hundred fifty-two thousand, nine hundred seventy-two".