189476256 has 48 divisors (see below), whose sum is σ = 514533600. Its totient is φ = 60979968.

The previous prime is 189476249. The next prime is 189476267. The reversal of 189476256 is 652674981.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31246 + ... + 36813.

It is an arithmetic number, because the mean of its divisors is an integer number (10719450).

Almost surely, 2^189476256 is an apocalyptic number.

189476256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

189476256 is an abundant number, since it is smaller than the sum of its proper divisors (325057344).

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

189476256 is a wasteful number, since it uses less digits than its factorization.

189476256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68101 (or 68093 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The square root of 189476256 is about 13765.0374500035. The cubic root of 189476256 is about 574.3609848760.

The spelling of 189476256 in words is "one hundred eighty-nine million, four hundred seventy-six thousand, two hundred fifty-six".