189220684 has 12 divisors (see below), whose sum is σ = 338181984. Its totient is φ = 92597264.

The previous prime is 189220657. The next prime is 189220687. The reversal of 189220684 is 486022981.

189220684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (189220687) 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, 503059 + ... + 503434.

It is an arithmetic number, because the mean of its divisors is an integer number (28181832).

Almost surely, 2^189220684 is an apocalyptic number.

It is an amenable number.

189220684 is a deficient number, since it is larger than the sum of its proper divisors (148961300).

189220684 is a wasteful number, since it uses less digits than its factorization.

189220684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006544 (or 1006542 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 189220684 is about 13755.7509427875. The cubic root of 189220684 is about 574.1026294899.

The spelling of 189220684 in words is "one hundred eighty-nine million, two hundred twenty thousand, six hundred eighty-four".