2393446881 has 16 divisors (see below), whose sum is σ = 3861696384. Its totient is φ = 1287231744.

The previous prime is 2393446843. The next prime is 2393446883. The reversal of 2393446881 is 1886443932.

It is not a de Polignac number, because 2393446881 - 2⁶ = 2393446817 is a prime.

It is a super-2 number, since 2×2393446881² = 11457175944337256322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2393446881.

It is not an unprimeable number, because it can be changed into a prime (2393446883) 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, 3351810 + ... + 3352523.

It is an arithmetic number, because the mean of its divisors is an integer number (241356024).

Almost surely, 2^2393446881 is an apocalyptic number.

2393446881 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2393446881 is a deficient number, since it is larger than the sum of its proper divisors (1468249503).

2393446881 is a wasteful number, since it uses less digits than its factorization.

2393446881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6704360.

The product of its digits is 995328, while the sum is 48.

The square root of 2393446881 is about 48922.8666474073. The cubic root of 2393446881 is about 1337.6462133340.

The spelling of 2393446881 in words is "two billion, three hundred ninety-three million, four hundred forty-six thousand, eight hundred eighty-one".