189494492 has 24 divisors (see below), whose sum is σ = 367167360. Its totient is φ = 84846960.

The previous prime is 189494471. The next prime is 189494531. The reversal of 189494492 is 294494981.

It is a self number, because there is not a number n which added to its sum of digits gives 189494492.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29192 + ... + 35087.

It is an arithmetic number, because the mean of its divisors is an integer number (15298640).

Almost surely, 2^189494492 is an apocalyptic number.

It is an amenable number.

189494492 is a deficient number, since it is larger than the sum of its proper divisors (177672868).

189494492 is a wasteful number, since it uses less digits than its factorization.

189494492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64361 (or 64359 counting only the distinct ones).

The product of its digits is 746496, while the sum is 50.

The square root of 189494492 is about 13765.6998369135. The cubic root of 189494492 is about 574.3794105988.

The spelling of 189494492 in words is "one hundred eighty-nine million, four hundred ninety-four thousand, four hundred ninety-two".