492189440 has 72 divisors (see below), whose sum is σ = 1248352560. Its totient is φ = 185286656.

The previous prime is 492189431. The next prime is 492189493. The reversal of 492189440 is 44981294.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10451 + ... + 33069.

It is an arithmetic number, because the mean of its divisors is an integer number (17338230).

Almost surely, 2^492189440 is an apocalyptic number.

492189440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 492189440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (624176280).

492189440 is an abundant number, since it is smaller than the sum of its proper divisors (756163120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

492189440 is a wasteful number, since it uses less digits than its factorization.

492189440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22657 (or 22643 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 492189440 is about 22185.3429092273. The cubic root of 492189440 is about 789.5459870591.

The spelling of 492189440 in words is "four hundred ninety-two million, one hundred eighty-nine thousand, four hundred forty".