22804321990 has 16 divisors (see below), whose sum is σ = 42371902080. Its totient is φ = 8827479360.

The previous prime is 22804321979. The next prime is 22804321997. The reversal of 22804321990 is 9912340822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22804321997) 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, 36780855 + ... + 36781474.

It is an arithmetic number, because the mean of its divisors is an integer number (2648243880).

Almost surely, 2^22804321990 is an apocalyptic number.

22804321990 is a deficient number, since it is larger than the sum of its proper divisors (19567580090).

22804321990 is a wasteful number, since it uses less digits than its factorization.

22804321990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73562367.

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 22804321990 in words is "twenty-two billion, eight hundred four million, three hundred twenty-one thousand, nine hundred ninety".