20572312 has 32 divisors (see below), whose sum is σ = 41055120. Its totient is φ = 9630720.

The previous prime is 20572309. The next prime is 20572319. The reversal of 20572312 is 21327502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20572319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44788 + ... + 45244.

Almost surely, 2^20572312 is an apocalyptic number.

It is an amenable number.

20572312 is a deficient number, since it is larger than the sum of its proper divisors (20482808).

20572312 is a wasteful number, since it uses less digits than its factorization.

20572312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811 (or 807 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 20572312 is about 4535.6710639111. The cubic root of 20572312 is about 274.0066064793.

Adding to 20572312 its reverse (21327502), we get a palindrome (41899814).

The spelling of 20572312 in words is "twenty million, five hundred seventy-two thousand, three hundred twelve".