189001650 has 24 divisors (see below), whose sum is σ = 468724464. Its totient is φ = 50400400.

The previous prime is 189001591. The next prime is 189001679. The reversal of 189001650 is 56100981.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 629856 + ... + 630155.

It is an arithmetic number, because the mean of its divisors is an integer number (19530186).

Almost surely, 2^189001650 is an apocalyptic number.

189001650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189001650 is an abundant number, since it is smaller than the sum of its proper divisors (279722814).

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

189001650 is a wasteful number, since it uses less digits than its factorization.

189001650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260026 (or 1260021 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 189001650 is about 13747.7870946564. The cubic root of 189001650 is about 573.8810248461.

The spelling of 189001650 in words is "one hundred eighty-nine million, one thousand, six hundred fifty".