22628808428 has 12 divisors (see below), whose sum is σ = 41322172080. Its totient is φ = 10822473552.

The previous prime is 22628808277. The next prime is 22628808457. The reversal of 22628808428 is 82480882622.

It is a super-2 number, since 2×22628808428² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

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, 122982563 + ... + 122982746.

It is an arithmetic number, because the mean of its divisors is an integer number (3443514340).

Almost surely, 2^22628808428 is an apocalyptic number.

It is an amenable number.

22628808428 is a deficient number, since it is larger than the sum of its proper divisors (18693363652).

22628808428 is a wasteful number, since it uses less digits than its factorization.

22628808428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245965336 (or 245965334 counting only the distinct ones).

The product of its (nonzero) digits is 1572864, while the sum is 50.

The spelling of 22628808428 in words is "twenty-two billion, six hundred twenty-eight million, eight hundred eight thousand, four hundred twenty-eight".