1493217774 has 48 divisors (see below), whose sum is σ = 3364988400. Its totient is φ = 490826304.

The previous prime is 1493217757. The next prime is 1493217829. The reversal of 1493217774 is 4777123941.

1493217774 is a `hidden beast` number, since 1 + 493 + 21 + 77 + 74 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 285172 + ... + 290360.

It is an arithmetic number, because the mean of its divisors is an integer number (70103925).

Almost surely, 2^1493217774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1493217774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1682494200).

1493217774 is an abundant number, since it is smaller than the sum of its proper divisors (1871770626).

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

1493217774 is an equidigital number, since it uses as much as digits as its factorization.

1493217774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5346 (or 5267 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 1493217774 is about 38642.1761033201. The cubic root of 1493217774 is about 1142.9863666990.

The spelling of 1493217774 in words is "one billion, four hundred ninety-three million, two hundred seventeen thousand, seven hundred seventy-four".