189487292 has 24 divisors (see below), whose sum is σ = 334569312. Its totient is φ = 93900800.

The previous prime is 189487279. The next prime is 189487297. The reversal of 189487292 is 292784981.

It is a self number, because there is not a number n which added to its sum of digits gives 189487292.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189487297) 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, 295292 + ... + 295932.

It is an arithmetic number, because the mean of its divisors is an integer number (13940388).

Almost surely, 2^189487292 is an apocalyptic number.

It is an amenable number.

189487292 is a deficient number, since it is larger than the sum of its proper divisors (145082020).

189487292 is a wasteful number, since it uses less digits than its factorization.

189487292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189 (or 1187 counting only the distinct ones).

The product of its digits is 580608, while the sum is 50.

The square root of 189487292 is about 13765.4383148522. The cubic root of 189487292 is about 574.3721358330.

The spelling of 189487292 in words is "one hundred eighty-nine million, four hundred eighty-seven thousand, two hundred ninety-two".