189456734 has 8 divisors (see below), whose sum is σ = 285374880. Its totient is φ = 94331776.

The previous prime is 189456731. The next prime is 189456749. The reversal of 189456734 is 437654981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189456731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197699 + ... + 198654.

It is an arithmetic number, because the mean of its divisors is an integer number (35671860).

Almost surely, 2^189456734 is an apocalyptic number.

189456734 is a deficient number, since it is larger than the sum of its proper divisors (95918146).

189456734 is a wasteful number, since it uses less digits than its factorization.

189456734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396594.

The product of its digits is 725760, while the sum is 47.

The square root of 189456734 is about 13764.3283163400. The cubic root of 189456734 is about 574.3412584637.

The spelling of 189456734 in words is "one hundred eighty-nine million, four hundred fifty-six thousand, seven hundred thirty-four".