1493325218 has 32 divisors (see below), whose sum is σ = 2799498240. Its totient is φ = 580401360.

The previous prime is 1493325187. The next prime is 1493325227. The reversal of 1493325218 is 8125233941.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52955 + ... + 76097.

It is an arithmetic number, because the mean of its divisors is an integer number (87484320).

Almost surely, 2^1493325218 is an apocalyptic number.

1493325218 is a deficient number, since it is larger than the sum of its proper divisors (1306173022).

1493325218 is a wasteful number, since it uses less digits than its factorization.

1493325218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23582.

The product of its digits is 51840, while the sum is 38.

The square root of 1493325218 is about 38643.5663209285. The cubic root of 1493325218 is about 1143.0137804458.

The spelling of 1493325218 in words is "one billion, four hundred ninety-three million, three hundred twenty-five thousand, two hundred eighteen".