20361772 has 12 divisors (see below), whose sum is σ = 35666176. Its totient is φ = 10171440.

The previous prime is 20361751. The next prime is 20361791. The reversal of 20361772 is 27716302.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a pancake number, because a pancake can be divided into 20361772 parts by 6381 straight cuts.

It is a self number, because there is not a number n which added to its sum of digits gives 20361772.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5122 + ... + 8182.

Almost surely, 2^20361772 is an apocalyptic number.

It is an amenable number.

20361772 is a deficient number, since it is larger than the sum of its proper divisors (15304404).

20361772 is a wasteful number, since it uses less digits than its factorization.

20361772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4728 (or 4726 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 20361772 is about 4512.4020210970. The cubic root of 20361772 is about 273.0686584592.

The spelling of 20361772 in words is "twenty million, three hundred sixty-one thousand, seven hundred seventy-two".