189492398 has 8 divisors (see below), whose sum is σ = 293407680. Its totient is φ = 91689840.

The previous prime is 189492383. The next prime is 189492419. The reversal of 189492398 is 893294981.

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

It is a Curzon number.

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, 1528103 + ... + 1528226.

It is an arithmetic number, because the mean of its divisors is an integer number (36675960).

Almost surely, 2^189492398 is an apocalyptic number.

189492398 is a deficient number, since it is larger than the sum of its proper divisors (103915282).

189492398 is a wasteful number, since it uses less digits than its factorization.

189492398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3056362.

The product of its digits is 1119744, while the sum is 53.

The square root of 189492398 is about 13765.6237780930. The cubic root of 189492398 is about 574.3772948734.

The spelling of 189492398 in words is "one hundred eighty-nine million, four hundred ninety-two thousand, three hundred ninety-eight".