1493780718 has 16 divisors (see below), whose sum is σ = 3163300560. Its totient is φ = 468637056.

The previous prime is 1493780711. The next prime is 1493780753. The reversal of 1493780718 is 8170873941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1493780711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7322353 + ... + 7322556.

It is an arithmetic number, because the mean of its divisors is an integer number (197706285).

Almost surely, 2^1493780718 is an apocalyptic number.

1493780718 is an abundant number, since it is smaller than the sum of its proper divisors (1669519842).

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

1493780718 is a wasteful number, since it uses less digits than its factorization.

1493780718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14644931.

The product of its (nonzero) digits is 338688, while the sum is 48.

The square root of 1493780718 is about 38649.4594787560. The cubic root of 1493780718 is about 1143.1299841687.

The spelling of 1493780718 in words is "one billion, four hundred ninety-three million, seven hundred eighty thousand, seven hundred eighteen".