189502742 has 24 divisors (see below), whose sum is σ = 335790360. Its totient is φ = 79510080.

The previous prime is 189502739. The next prime is 189502769. The reversal of 189502742 is 247205981.

189502742 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×189502742³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 189502696 and 189502705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21767 + ... + 29202.

It is an arithmetic number, because the mean of its divisors is an integer number (13991265).

Almost surely, 2^189502742 is an apocalyptic number.

189502742 is a deficient number, since it is larger than the sum of its proper divisors (146287618).

189502742 is a wasteful number, since it uses less digits than its factorization.

189502742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51008 (or 50995 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 189502742 is about 13765.9994915008. Note that the first 3 decimals coincide. The cubic root of 189502742 is about 574.3877460414.

The spelling of 189502742 in words is "one hundred eighty-nine million, five hundred two thousand, seven hundred forty-two".