189934370 has 32 divisors (see below), whose sum is σ = 362880000. Its totient is φ = 71329536.

The previous prime is 189934343. The next prime is 189934403. The reversal of 189934370 is 73439981.

It is a happy 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, 83711 + ... + 85949.

It is an arithmetic number, because the mean of its divisors is an integer number (11340000).

Almost surely, 2^189934370 is an apocalyptic number.

189934370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189934370 is a deficient number, since it is larger than the sum of its proper divisors (172945630).

189934370 is a wasteful number, since it uses less digits than its factorization.

189934370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2762.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 189934370 is about 13781.6678961583. The cubic root of 189934370 is about 574.8235072689.

The spelling of 189934370 in words is "one hundred eighty-nine million, nine hundred thirty-four thousand, three hundred seventy".