189478562 has 16 divisors (see below), whose sum is σ = 349806912. Its totient is φ = 74958480.

The previous prime is 189478561. The next prime is 189478571. The reversal of 189478562 is 265874981.

189478562 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 189478562.

It is not an unprimeable number, because it can be changed into a prime (189478561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520364 + ... + 520727.

It is an arithmetic number, because the mean of its divisors is an integer number (21862932).

Almost surely, 2^189478562 is an apocalyptic number.

189478562 is a deficient number, since it is larger than the sum of its proper divisors (160328350).

189478562 is a wasteful number, since it uses less digits than its factorization.

189478562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041113.

The product of its digits is 967680, while the sum is 50.

The square root of 189478562 is about 13765.1212126882. The cubic root of 189478562 is about 574.3633149323.

The spelling of 189478562 in words is "one hundred eighty-nine million, four hundred seventy-eight thousand, five hundred sixty-two".