189046290 has 32 divisors (see below), whose sum is σ = 480401280. Its totient is φ = 47446784.

The previous prime is 189046279. The next prime is 189046301. The reversal of 189046290 is 92640981.

It is an interprime number because it is at equal distance from previous prime (189046279) and next prime (189046301).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184830 + ... + 185849.

It is an arithmetic number, because the mean of its divisors is an integer number (15012540).

Almost surely, 2^189046290 is an apocalyptic number.

189046290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189046290 is an abundant number, since it is smaller than the sum of its proper divisors (291354990).

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

189046290 is a wasteful number, since it uses less digits than its factorization.

189046290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370706.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 189046290 is about 13749.4105328192. The cubic root of 189046290 is about 573.9262026392.

The spelling of 189046290 in words is "one hundred eighty-nine million, forty-six thousand, two hundred ninety".