492190388 has 12 divisors (see below), whose sum is σ = 861555492. Its totient is φ = 246031680.

The previous prime is 492190351. The next prime is 492190403. The reversal of 492190388 is 883091294.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 249703204 + 242487184 = 15802^2 + 15572^2 .

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, 4448 + ... + 31688.

It is an arithmetic number, because the mean of its divisors is an integer number (71796291).

Almost surely, 2^492190388 is an apocalyptic number.

It is an amenable number.

492190388 is a deficient number, since it is larger than the sum of its proper divisors (369365104).

492190388 is a wasteful number, since it uses less digits than its factorization.

492190388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31762 (or 31760 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 492190388 is about 22185.3642746744. The cubic root of 492190388 is about 789.5464939704.

The spelling of 492190388 in words is "four hundred ninety-two million, one hundred ninety thousand, three hundred eighty-eight".