2397749139 has 12 divisors (see below), whose sum is σ = 3667145976. Its totient is φ = 1504469952.

The previous prime is 2397749131. The next prime is 2397749183. The reversal of 2397749139 is 9319477932.

It is not a de Polignac number, because 2397749139 - 2³ = 2397749131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2397749131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7835629 + ... + 7835934.

It is an arithmetic number, because the mean of its divisors is an integer number (305595498).

Almost surely, 2^2397749139 is an apocalyptic number.

2397749139 is a deficient number, since it is larger than the sum of its proper divisors (1269396837).

2397749139 is a wasteful number, since it uses less digits than its factorization.

2397749139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15671586 (or 15671583 counting only the distinct ones).

The product of its digits is 2571912, while the sum is 54.

The square root of 2397749139 is about 48966.8167129537. The cubic root of 2397749139 is about 1338.4472135476.

The spelling of 2397749139 in words is "two billion, three hundred ninety-seven million, seven hundred forty-nine thousand, one hundred thirty-nine".