20407092 has 12 divisors (see below), whose sum is σ = 47616576. Its totient is φ = 6802360.

The previous prime is 20407031. The next prime is 20407099. The reversal of 20407092 is 29070402.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20407099) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 850284 + ... + 850307.

It is an arithmetic number, because the mean of its divisors is an integer number (3968048).

Almost surely, 2^20407092 is an apocalyptic number.

It is an amenable number.

20407092 is an abundant number, since it is smaller than the sum of its proper divisors (27209484).

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

20407092 is a wasteful number, since it uses less digits than its factorization.

20407092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700598 (or 1700596 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 20407092 is about 4517.4209456282. The cubic root of 20407092 is about 273.2711015703.

Adding to 20407092 its reverse (29070402), we get a palindrome (49477494).

The spelling of 20407092 in words is "twenty million, four hundred seven thousand, ninety-two".