189763338 has 16 divisors (see below), whose sum is σ = 391769856. Its totient is φ = 61213920.

The previous prime is 189763337. The next prime is 189763339. The reversal of 189763338 is 833367981.

It is an interprime number because it is at equal distance from previous prime (189763337) and next prime (189763339).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (189763337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509931 + ... + 510302.

It is an arithmetic number, because the mean of its divisors is an integer number (24485616).

Almost surely, 2^189763338 is an apocalyptic number.

189763338 is an abundant number, since it is smaller than the sum of its proper divisors (202006518).

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

189763338 is a wasteful number, since it uses less digits than its factorization.

189763338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020269.

The product of its digits is 653184, while the sum is 48.

The square root of 189763338 is about 13775.4614441767. The cubic root of 189763338 is about 574.6509165321.

The spelling of 189763338 in words is "one hundred eighty-nine million, seven hundred sixty-three thousand, three hundred thirty-eight".