2399938989 has 16 divisors (see below), whose sum is σ = 3659613312. Its totient is φ = 1370432448.

The previous prime is 2399938967. The next prime is 2399938991. The reversal of 2399938989 is 9898399932.

It is not a de Polignac number, because 2399938989 - 2⁹ = 2399938477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2399938999) 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, 8814 + ... + 69839.

It is an arithmetic number, because the mean of its divisors is an integer number (228725832).

Almost surely, 2^2399938989 is an apocalyptic number.

It is an amenable number.

2399938989 is a deficient number, since it is larger than the sum of its proper divisors (1259674323).

2399938989 is a wasteful number, since it uses less digits than its factorization.

2399938989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80116.

The product of its digits is 68024448, while the sum is 69.

The square root of 2399938989 is about 48989.1721607949. The cubic root of 2399938989 is about 1338.8545548533.

The spelling of 2399938989 in words is "two billion, three hundred ninety-nine million, nine hundred thirty-eight thousand, nine hundred eighty-nine".