189318822 has 32 divisors (see below), whose sum is σ = 472068864. Its totient is φ = 49173600.

The previous prime is 189318821. The next prime is 189318823. The reversal of 189318822 is 228813981.

It is an interprime number because it is at equal distance from previous prime (189318821) and next prime (189318823).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189318821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204429 + ... + 205352.

It is an arithmetic number, because the mean of its divisors is an integer number (14752152).

Almost surely, 2^189318822 is an apocalyptic number.

189318822 is an abundant number, since it is smaller than the sum of its proper divisors (282750042).

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

189318822 is a wasteful number, since it uses less digits than its factorization.

189318822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409804.

The product of its digits is 55296, while the sum is 42.

The square root of 189318822 is about 13759.3176429647. The cubic root of 189318822 is about 574.2018637898.

The spelling of 189318822 in words is "one hundred eighty-nine million, three hundred eighteen thousand, eight hundred twenty-two".