189699370 has 32 divisors (see below), whose sum is σ = 400791168. Its totient is φ = 63281088.

The previous prime is 189699361. The next prime is 189699371. The reversal of 189699370 is 73996981.

189699370 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (189699371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34032 + ... + 39211.

It is an arithmetic number, because the mean of its divisors is an integer number (12524724).

Almost surely, 2^189699370 is an apocalyptic number.

189699370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189699370 is an abundant number, since it is smaller than the sum of its proper divisors (211091798).

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

189699370 is a wasteful number, since it uses less digits than its factorization.

189699370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73294.

The product of its (nonzero) digits is 734832, while the sum is 52.

The square root of 189699370 is about 13773.1394387772. The cubic root of 189699370 is about 574.5863389001.

The spelling of 189699370 in words is "one hundred eighty-nine million, six hundred ninety-nine thousand, three hundred seventy".