20788892 has 12 divisors (see below), whose sum is σ = 38520720. Its totient is φ = 9782976.

The previous prime is 20788877. The next prime is 20788903. The reversal of 20788892 is 29888702.

It is a congruent number.

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, 152792 + ... + 152927.

It is an arithmetic number, because the mean of its divisors is an integer number (3210060).

Almost surely, 2^20788892 is an apocalyptic number.

It is an amenable number.

20788892 is a deficient number, since it is larger than the sum of its proper divisors (17731828).

20788892 is a wasteful number, since it uses less digits than its factorization.

20788892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305740 (or 305738 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 20788892 is about 4559.4837427060. The cubic root of 20788892 is about 274.9648087200.

The spelling of 20788892 in words is "twenty million, seven hundred eighty-eight thousand, eight hundred ninety-two".