2399121234 has 16 divisors (see below), whose sum is σ = 5331380640. Its totient is φ = 799707060.

The previous prime is 2399121229. The next prime is 2399121247. The reversal of 2399121234 is 4321219932.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22214032 + ... + 22214139.

It is an arithmetic number, because the mean of its divisors is an integer number (333211290).

Almost surely, 2^2399121234 is an apocalyptic number.

2399121234 is an abundant number, since it is smaller than the sum of its proper divisors (2932259406).

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

2399121234 is a wasteful number, since it uses less digits than its factorization.

2399121234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44428182 (or 44428176 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 2399121234 is about 48980.8251665894. The cubic root of 2399121234 is about 1338.7024705172.

The spelling of 2399121234 in words is "two billion, three hundred ninety-nine million, one hundred twenty-one thousand, two hundred thirty-four".