1393739274 has 8 divisors (see below), whose sum is σ = 2787478560. Its totient is φ = 464579756.

The previous prime is 1393739267. The next prime is 1393739279. The reversal of 1393739274 is 4729373931.

It is a sphenic number, since it is the product of 3 distinct primes.

1393739274 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1393739279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116144934 + ... + 116144945.

It is an arithmetic number, because the mean of its divisors is an integer number (348434820).

Almost surely, 2^1393739274 is an apocalyptic number.

1393739274 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1393739274 is a wasteful number, since it uses less digits than its factorization.

1393739274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232289884.

The product of its digits is 857304, while the sum is 48.

The square root of 1393739274 is about 37332.8176541766. The cubic root of 1393739274 is about 1117.0188775156.

It can be divided in two parts, 139373927 and 4, that added together give a palindrome (139373931).

The spelling of 1393739274 in words is "one billion, three hundred ninety-three million, seven hundred thirty-nine thousand, two hundred seventy-four".