20622115304 has 48 divisors (see below), whose sum is σ = 45716778180. Its totient is φ = 8693153280.

The previous prime is 20622115303. The next prime is 20622115309. The reversal of 20622115304 is 40351122602.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17153140900 + 3468974404 = 130970^2 + 58898^2 .

It is a super-2 number, since 2×20622115304² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20622115301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 407297 + ... + 455120.

Almost surely, 2^20622115304 is an apocalyptic number.

It is an amenable number.

20622115304 is an abundant number, since it is smaller than the sum of its proper divisors (25094662876).

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

20622115304 is a wasteful number, since it uses less digits than its factorization.

20622115304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862498 (or 862487 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 20622115304 its reverse (40351122602), we get a palindrome (60973237906).

The spelling of 20622115304 in words is "twenty billion, six hundred twenty-two million, one hundred fifteen thousand, three hundred four".