1317240774 has 96 divisors (see below), whose sum is σ = 3089721024. Its totient is φ = 404490240.

The previous prime is 1317240679. The next prime is 1317240787. The reversal of 1317240774 is 4770427131.

1317240774 is a `hidden beast` number, since 13 + 172 + 407 + 74 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1730554 + ... + 1731314.

It is an arithmetic number, because the mean of its divisors is an integer number (32184594).

Almost surely, 2^1317240774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1317240774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1544860512).

1317240774 is an abundant number, since it is smaller than the sum of its proper divisors (1772480250).

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

1317240774 is a wasteful number, since it uses less digits than its factorization.

1317240774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942 (or 939 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 1317240774 is about 36293.8117865842. The cubic root of 1317240774 is about 1096.1964429126.

The spelling of 1317240774 in words is "one billion, three hundred seventeen million, two hundred forty thousand, seven hundred seventy-four".