20620292 has 24 divisors (see below), whose sum is σ = 44990400. Its totient is φ = 8033760.

The previous prime is 20620289. The next prime is 20620319. The reversal of 20620292 is 29202602.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33167 + ... + 33782.

It is an arithmetic number, because the mean of its divisors is an integer number (1874600).

Almost surely, 2^20620292 is an apocalyptic number.

20620292 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20620292 is an abundant number, since it is smaller than the sum of its proper divisors (24370108).

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

20620292 is a wasteful number, since it uses less digits than its factorization.

20620292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66971 (or 66969 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 20620292 is about 4540.9571678227. The cubic root of 20620292 is about 274.2194593919.

Adding to 20620292 its reverse (29202602), we get a palindrome (49822894).

The spelling of 20620292 in words is "twenty million, six hundred twenty thousand, two hundred ninety-two".