20750872 has 8 divisors (see below), whose sum is σ = 38907900. Its totient is φ = 10375432.

The previous prime is 20750867. The next prime is 20750927. The reversal of 20750872 is 27805702.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1296922 + ... + 1296937.

Almost surely, 2^20750872 is an apocalyptic number.

It is an amenable number.

20750872 is a deficient number, since it is larger than the sum of its proper divisors (18157028).

20750872 is a wasteful number, since it uses less digits than its factorization.

20750872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2593865 (or 2593861 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 20750872 is about 4555.3125030013. The cubic root of 20750872 is about 274.7970822633.

The spelling of 20750872 in words is "twenty million, seven hundred fifty thousand, eight hundred seventy-two".