2399048981 has 8 divisors (see below), whose sum is σ = 2762700864. Its totient is φ = 2040629760.

The previous prime is 2399048929. The next prime is 2399048989. The reversal of 2399048981 is 1898409932.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2399048981 is a prime.

It is a super-2 number, since 2×2399048981² = 11510872026474276722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2399048989) 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, 1307180 + ... + 1309013.

It is an arithmetic number, because the mean of its divisors is an integer number (345337608).

Almost surely, 2^2399048981 is an apocalyptic number.

It is an amenable number.

2399048981 is a deficient number, since it is larger than the sum of its proper divisors (363651883).

2399048981 is a wasteful number, since it uses less digits than its factorization.

2399048981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2616331.

The product of its (nonzero) digits is 1119744, while the sum is 53.

The square root of 2399048981 is about 48980.0875969000. The cubic root of 2399048981 is about 1338.6890313963.

The spelling of 2399048981 in words is "two billion, three hundred ninety-nine million, forty-eight thousand, nine hundred eighty-one".