22690322428 has 12 divisors (see below), whose sum is σ = 39716649000. Its totient is φ = 11342708432.

The previous prime is 22690322383. The next prime is 22690322453. The reversal of 22690322428 is 82422309622.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592303 + ... + 629446.

It is an arithmetic number, because the mean of its divisors is an integer number (3309720750).

Almost surely, 2^22690322428 is an apocalyptic number.

It is an amenable number.

22690322428 is a deficient number, since it is larger than the sum of its proper divisors (17026326572).

22690322428 is a wasteful number, since it uses less digits than its factorization.

22690322428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226396 (or 1226394 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 22690322428 in words is "twenty-two billion, six hundred ninety million, three hundred twenty-two thousand, four hundred twenty-eight".