189000402 has 16 divisors (see below), whose sum is σ = 378587520. Its totient is φ = 62902352.

The previous prime is 189000401. The next prime is 189000433. The reversal of 189000402 is 204000981.

It is not an unprimeable number, because it can be changed into a prime (189000401) 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, 20202 + ... + 28037.

It is an arithmetic number, because the mean of its divisors is an integer number (23661720).

Almost surely, 2^189000402 is an apocalyptic number.

189000402 is an abundant number, since it is smaller than the sum of its proper divisors (189587118).

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

189000402 is a wasteful number, since it uses less digits than its factorization.

189000402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48897.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 189000402 is about 13747.7417054584. The cubic root of 189000402 is about 573.8797617089.

The spelling of 189000402 in words is "one hundred eighty-nine million, four hundred two", and thus it is an aban number.