189487412 has 12 divisors (see below), whose sum is σ = 339314976. Its totient is φ = 92540280.

The previous prime is 189487393. The next prime is 189487433. The reversal of 189487412 is 214784981.

189487412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 550664 + ... + 551007.

It is an arithmetic number, because the mean of its divisors is an integer number (28276248).

Almost surely, 2^189487412 is an apocalyptic number.

It is an amenable number.

189487412 is a deficient number, since it is larger than the sum of its proper divisors (149827564).

189487412 is a wasteful number, since it uses less digits than its factorization.

189487412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101718 (or 1101716 counting only the distinct ones).

The product of its digits is 129024, while the sum is 44.

The square root of 189487412 is about 13765.4426735939. The cubic root of 189487412 is about 574.3722570806.

The spelling of 189487412 in words is "one hundred eighty-nine million, four hundred eighty-seven thousand, four hundred twelve".