2399989249 has 8 divisors (see below), whose sum is σ = 2744394048. Its totient is φ = 2055971760.

The previous prime is 2399989223. The next prime is 2399989271. The reversal of 2399989249 is 9429899932.

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

It is a cyclic number.

It is not a de Polignac number, because 2399989249 - 2¹³ = 2399981057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2399989289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83422 + ... + 108439.

It is an arithmetic number, because the mean of its divisors is an integer number (343049256).

Almost surely, 2^2399989249 is an apocalyptic number.

It is an amenable number.

2399989249 is a deficient number, since it is larger than the sum of its proper divisors (344404799).

2399989249 is a wasteful number, since it uses less digits than its factorization.

2399989249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193655.

The product of its digits is 22674816, while the sum is 64.

The square root of 2399989249 is about 48989.6851286064. The cubic root of 2399989249 is about 1338.8639009742.

The spelling of 2399989249 in words is "two billion, three hundred ninety-nine million, nine hundred eighty-nine thousand, two hundred forty-nine".