19226042928 has 80 divisors (see below), whose sum is σ = 55884518400. Its totient is φ = 6327547200.

The previous prime is 19226042909. The next prime is 19226042963. The reversal of 19226042928 is 82924062291.

19226042928 is a `hidden beast` number, since 19 + 2 + 2 + 604 + 2 + 9 + 28 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247548 + ... + 315803.

It is an arithmetic number, because the mean of its divisors is an integer number (698556480).

Almost surely, 2^19226042928 is an apocalyptic number.

19226042928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

19226042928 is an abundant number, since it is smaller than the sum of its proper divisors (36658475472).

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

19226042928 is a wasteful number, since it uses less digits than its factorization.

19226042928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563447 (or 563435 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 19226042928 in words is "nineteen billion, two hundred twenty-six million, forty-two thousand, nine hundred twenty-eight".