1319542794 has 48 divisors (see below), whose sum is σ = 2887410240. Its totient is φ = 435499200.

The previous prime is 1319542793. The next prime is 1319542801. The reversal of 1319542794 is 4972459131.

1319542794 is a `hidden beast` number, since 1 + 3 + 19 + 542 + 7 + 94 = 666.

It is a super-4 number, since 4×1319542794⁴ (a number of 38 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1319542793) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1111069 + ... + 1112255.

It is an arithmetic number, because the mean of its divisors is an integer number (60154380).

Almost surely, 2^1319542794 is an apocalyptic number.

1319542794 is an abundant number, since it is smaller than the sum of its proper divisors (1567867446).

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

1319542794 is a wasteful number, since it uses less digits than its factorization.

1319542794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755 (or 1752 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 1319542794 is about 36325.5116137406. The cubic root of 1319542794 is about 1096.8346450296.

The spelling of 1319542794 in words is "one billion, three hundred nineteen million, five hundred forty-two thousand, seven hundred ninety-four".