189746656 has 96 divisors (see below), whose sum is σ = 443675232. Its totient is φ = 78888960.

The previous prime is 189746653. The next prime is 189746663. The reversal of 189746656 is 656647981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189746651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220980 + ... + 221836.

It is an arithmetic number, because the mean of its divisors is an integer number (4621617).

Almost surely, 2^189746656 is an apocalyptic number.

189746656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189746656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221837616).

189746656 is an abundant number, since it is smaller than the sum of its proper divisors (253928576).

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

189746656 is a wasteful number, since it uses less digits than its factorization.

189746656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932 (or 924 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The square root of 189746656 is about 13774.8559339109. The cubic root of 189746656 is about 574.6340769472.

The spelling of 189746656 in words is "one hundred eighty-nine million, seven hundred forty-six thousand, six hundred fifty-six".