20090892 has 24 divisors (see below), whose sum is σ = 47251456. Its totient is φ = 6643728.

The previous prime is 20090887. The next prime is 20090893. The reversal of 20090892 is 29809002.

It is not an unprimeable number, because it can be changed into a prime (20090893) 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, 5068 + ... + 8115.

Almost surely, 2^20090892 is an apocalyptic number.

It is an amenable number.

20090892 is an abundant number, since it is smaller than the sum of its proper divisors (27160564).

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

20090892 is a wasteful number, since it uses less digits than its factorization.

20090892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13317 (or 13315 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 20090892 is about 4482.2864700954. The cubic root of 20090892 is about 271.8523383939.

Adding to 20090892 its reverse (29809002), we get a palindrome (49899894).

The spelling of 20090892 in words is "twenty million, ninety thousand, eight hundred ninety-two".