2312404443 has 40 divisors (see below), whose sum is σ = 3665080320. Its totient is φ = 1448843760.

The previous prime is 2312404397. The next prime is 2312404453. The reversal of 2312404443 is 3444042132.

It is a happy number.

It is not a de Polignac number, because 2312404443 - 2⁸ = 2312404187 is a prime.

It is a super-2 number, since 2×2312404443² = 10694428616012280498, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2312404453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 189538 + ... + 201368.

It is an arithmetic number, because the mean of its divisors is an integer number (91627008).

Almost surely, 2^2312404443 is an apocalyptic number.

2312404443 is a deficient number, since it is larger than the sum of its proper divisors (1352675877).

2312404443 is a wasteful number, since it uses less digits than its factorization.

2312404443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11989 (or 11980 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 2312404443 is about 48087.4665895387. The cubic root of 2312404443 is about 1322.3749033037.

Adding to 2312404443 its reverse (3444042132), we get a palindrome (5756446575).

The spelling of 2312404443 in words is "two billion, three hundred twelve million, four hundred four thousand, four hundred forty-three".