189002830 has 16 divisors (see below), whose sum is σ = 341123904. Its totient is φ = 75396960.

The previous prime is 189002789. The next prime is 189002857. The reversal of 189002830 is 38200981.

It is a junction number, because it is equal to n+sod(n) for n = 189002792 and 189002801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21606 + ... + 29065.

It is an arithmetic number, because the mean of its divisors is an integer number (21320244).

Almost surely, 2^189002830 is an apocalyptic number.

189002830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189002830 is a deficient number, since it is larger than the sum of its proper divisors (152121074).

189002830 is a wasteful number, since it uses less digits than its factorization.

189002830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51051.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 189002830 is about 13747.8300105871. The cubic root of 189002830 is about 573.8822191535.

The spelling of 189002830 in words is "one hundred eighty-nine million, two thousand, eight hundred thirty".