189390710 has 16 divisors (see below), whose sum is σ = 360956736. Its totient is φ = 71299968.

The previous prime is 189390653. The next prime is 189390731. The reversal of 189390710 is 17093981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556862 + ... + 557201.

It is an arithmetic number, because the mean of its divisors is an integer number (22559796).

Almost surely, 2^189390710 is an apocalyptic number.

189390710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189390710 is a deficient number, since it is larger than the sum of its proper divisors (171566026).

189390710 is a wasteful number, since it uses less digits than its factorization.

189390710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114087.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 189390710 is about 13761.9297338709. The cubic root of 189390710 is about 574.2745330918.

The spelling of 189390710 in words is "one hundred eighty-nine million, three hundred ninety thousand, seven hundred ten".