189428573244 has 24 divisors (see below), whose sum is σ = 442098724480. Its totient is φ = 63128754864.

The previous prime is 189428573231. The next prime is 189428573297. The reversal of 189428573244 is 442375824981.

It is a super-2 number, since 2×189428573244² (a number of 23 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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1706824 + ... + 1814415.

Almost surely, 2^189428573244 is an apocalyptic number.

It is an amenable number.

189428573244 is an abundant number, since it is smaller than the sum of its proper divisors (252670151236).

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

189428573244 is a wasteful number, since it uses less digits than its factorization.

189428573244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3525729 (or 3525727 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 57.

The spelling of 189428573244 in words is "one hundred eighty-nine billion, four hundred twenty-eight million, five hundred seventy-three thousand, two hundred forty-four".