493981740 has 300 divisors, whose sum is σ = 1822039296. Its totient is φ = 112021056.

The previous prime is 493981739. The next prime is 493981751. The reversal of 493981740 is 47189394.

493981740 is a `hidden beast` number, since 493 + 98 + 1 + 74 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 99 ways as a sum of consecutive naturals, for example, 3889557 + ... + 3889683.

Almost surely, 2^493981740 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 493981740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (911019648).

493981740 is an abundant number, since it is smaller than the sum of its proper divisors (1328057556).

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

493981740 is a wasteful number, since it uses less digits than its factorization.

493981740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 493981740 is about 22225.6999889767. The cubic root of 493981740 is about 790.5031991488.

The spelling of 493981740 in words is "four hundred ninety-three million, nine hundred eighty-one thousand, seven hundred forty".