493990980 has 96 divisors (see below), whose sum is σ = 1583898624. Its totient is φ = 112689024.

The previous prime is 493990967. The next prime is 493990999. The reversal of 493990980 is 89099394.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 311269 + ... + 312851.

It is an arithmetic number, because the mean of its divisors is an integer number (16498944).

Almost surely, 2^493990980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 493990980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (791949312).

493990980 is an abundant number, since it is smaller than the sum of its proper divisors (1089907644).

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

493990980 is a wasteful number, since it uses less digits than its factorization.

493990980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2345 (or 2343 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 51.

The square root of 493990980 is about 22225.9078554735. The cubic root of 493990980 is about 790.5081279437.

The spelling of 493990980 in words is "four hundred ninety-three million, nine hundred ninety thousand, nine hundred eighty".