2398739643 has 16 divisors (see below), whose sum is σ = 3577228800. Its totient is φ = 1588566600.

The previous prime is 2398739641. The next prime is 2398739653. The reversal of 2398739643 is 3469378932.

It is not a de Polignac number, because 2398739643 - 2¹ = 2398739641 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2398739643.

It is not an unprimeable number, because it can be changed into a prime (2398739641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290103 + ... + 298256.

It is an arithmetic number, because the mean of its divisors is an integer number (223576800).

Almost surely, 2^2398739643 is an apocalyptic number.

2398739643 is a deficient number, since it is larger than the sum of its proper divisors (1178489157).

2398739643 is a wasteful number, since it uses less digits than its factorization.

2398739643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588519 (or 588513 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 54.

The square root of 2398739643 is about 48976.9297016463. The cubic root of 2398739643 is about 1338.6314912084.

The spelling of 2398739643 in words is "two billion, three hundred ninety-eight million, seven hundred thirty-nine thousand, six hundred forty-three".