20320092 has 96 divisors (see below), whose sum is σ = 58282560. Its totient is φ = 6082560.

The previous prime is 20320073. The next prime is 20320103. The reversal of 20320092 is 29002302.

It is a super-2 number, since 2×20320092² = 825812277776928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57388 + ... + 57740.

It is an arithmetic number, because the mean of its divisors is an integer number (607110).

Almost surely, 2^20320092 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20320092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29141280).

20320092 is an abundant number, since it is smaller than the sum of its proper divisors (37962468).

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

20320092 is a wasteful number, since it uses less digits than its factorization.

20320092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 20320092 is about 4507.7812724222. The cubic root of 20320092 is about 272.8822097814.

Adding to 20320092 its reverse (29002302), we get a palindrome (49322394).

The spelling of 20320092 in words is "twenty million, three hundred twenty thousand, ninety-two".