189245910 has 32 divisors (see below), whose sum is σ = 519075072. Its totient is φ = 43256160.

The previous prime is 189245899. The next prime is 189245929. The reversal of 189245910 is 19542981.

It is a congruent number.

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, 450376 + ... + 450795.

It is an arithmetic number, because the mean of its divisors is an integer number (16221096).

Almost surely, 2^189245910 is an apocalyptic number.

189245910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189245910 is an abundant number, since it is smaller than the sum of its proper divisors (329829162).

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

189245910 is a wasteful number, since it uses less digits than its factorization.

189245910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901188.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 189245910 is about 13756.6678378160. The cubic root of 189245910 is about 574.1281405653.

The spelling of 189245910 in words is "one hundred eighty-nine million, two hundred forty-five thousand, nine hundred ten".