20091792 has 40 divisors (see below), whose sum is σ = 59319616. Its totient is φ = 5740416.

The previous prime is 20091791. The next prime is 20091803. The reversal of 20091792 is 29719002.

It is not an unprimeable number, because it can be changed into a prime (20091791) 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, 29563 + ... + 30234.

Almost surely, 2^20091792 is an apocalyptic number.

It is an amenable number.

20091792 is an abundant number, since it is smaller than the sum of its proper divisors (39227824).

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

20091792 is a wasteful number, since it uses less digits than its factorization.

20091792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59815 (or 59809 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 20091792 is about 4482.3868641607. The cubic root of 20091792 is about 271.8563976703.

The spelling of 20091792 in words is "twenty million, ninety-one thousand, seven hundred ninety-two".