189966046 has 8 divisors (see below), whose sum is σ = 285978600. Its totient is φ = 94639848.

The previous prime is 189966031. The next prime is 189966053. The reversal of 189966046 is 640669981.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170896 + ... + 172003.

It is an arithmetic number, because the mean of its divisors is an integer number (35747325).

Almost surely, 2^189966046 is an apocalyptic number.

189966046 is a deficient number, since it is larger than the sum of its proper divisors (96012554).

189966046 is a wasteful number, since it uses less digits than its factorization.

189966046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343178.

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 189966046 is about 13782.8170560303. The cubic root of 189966046 is about 574.8554605822.

The spelling of 189966046 in words is "one hundred eighty-nine million, nine hundred sixty-six thousand, forty-six".