189435570 has 32 divisors (see below), whose sum is σ = 455872320. Its totient is φ = 50379840.

The previous prime is 189435557. The next prime is 189435593. The reversal of 189435570 is 75534981.

189435570 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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, 3040 + ... + 19700.

It is an arithmetic number, because the mean of its divisors is an integer number (14246010).

Almost surely, 2^189435570 is an apocalyptic number.

189435570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189435570 is an abundant number, since it is smaller than the sum of its proper divisors (266436750).

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

189435570 is a wasteful number, since it uses less digits than its factorization.

189435570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17050.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 189435570 is about 13763.5594960025. The cubic root of 189435570 is about 574.3198713272.

The spelling of 189435570 in words is "one hundred eighty-nine million, four hundred thirty-five thousand, five hundred seventy".