20712452 has 24 divisors (see below), whose sum is σ = 37426200. Its totient is φ = 10022400.

The previous prime is 20712449. The next prime is 20712469. The reversal of 20712452 is 25421702.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16192576 + 4519876 = 4024^2 + 2126^2 .

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, 51452 + ... + 51852.

It is an arithmetic number, because the mean of its divisors is an integer number (1559425).

Almost surely, 2^20712452 is an apocalyptic number.

It is an amenable number.

20712452 is a deficient number, since it is larger than the sum of its proper divisors (16713748).

20712452 is a wasteful number, since it uses less digits than its factorization.

20712452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791 (or 789 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 20712452 is about 4551.0934949746. The cubic root of 20712452 is about 274.6273829460.

The spelling of 20712452 in words is "twenty million, seven hundred twelve thousand, four hundred fifty-two".