19028900244 has 12 divisors (see below), whose sum is σ = 44400767264. Its totient is φ = 6342966744.

The previous prime is 19028900227. The next prime is 19028900263. The reversal of 19028900244 is 44200982091.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×19028900244² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 792870832 + ... + 792870855.

Almost surely, 2^19028900244 is an apocalyptic number.

It is an amenable number.

19028900244 is an abundant number, since it is smaller than the sum of its proper divisors (25371867020).

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

19028900244 is a wasteful number, since it uses less digits than its factorization.

19028900244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585741694 (or 1585741692 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The spelling of 19028900244 in words is "nineteen billion, twenty-eight million, nine hundred thousand, two hundred forty-four".