20265772 has 12 divisors (see below), whose sum is σ = 35650216. Its totient is φ = 10080000.

The previous prime is 20265709. The next prime is 20265779. The reversal of 20265772 is 27756202.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20265779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12354 + ... + 13897.

Almost surely, 2^20265772 is an apocalyptic number.

It is an amenable number.

20265772 is a deficient number, since it is larger than the sum of its proper divisors (15384444).

20265772 is a wasteful number, since it uses less digits than its factorization.

20265772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26448 (or 26446 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 20265772 is about 4501.7521033482. The cubic root of 20265772 is about 272.6388350694.

The spelling of 20265772 in words is "twenty million, two hundred sixty-five thousand, seven hundred seventy-two".