20628792 has 48 divisors (see below), whose sum is σ = 58303440. Its totient is φ = 6576768.

The previous prime is 20628787. The next prime is 20628799. The reversal of 20628792 is 29782602.

20628792 is a `hidden beast` number, since 20 + 628 + 7 + 9 + 2 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20628799) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4573 + ... + 7884.

It is an arithmetic number, because the mean of its divisors is an integer number (1214655).

Almost surely, 2^20628792 is an apocalyptic number.

It is an amenable number.

20628792 is an abundant number, since it is smaller than the sum of its proper divisors (37674648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20628792 is a wasteful number, since it uses less digits than its factorization.

20628792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12492 (or 12485 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 20628792 is about 4541.8929974186. The cubic root of 20628792 is about 274.2571333687.

The spelling of 20628792 in words is "twenty million, six hundred twenty-eight thousand, seven hundred ninety-two".