2402312644 has 6 divisors (see below), whose sum is σ = 4204047134. Its totient is φ = 1201156320.

The previous prime is 2402312641. The next prime is 2402312651. The reversal of 2402312644 is 4462132042.

It can be written as a sum of positive squares in only one way, i.e., 1896602500 + 505710144 = 43550^2 + 22488^2 .

It is a super-2 number, since 2×2402312644² = 11542212079044541472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2402312641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300289077 + ... + 300289084.

Almost surely, 2^2402312644 is an apocalyptic number.

It is an amenable number.

2402312644 is a deficient number, since it is larger than the sum of its proper divisors (1801734490).

2402312644 is a wasteful number, since it uses less digits than its factorization.

2402312644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600578165 (or 600578163 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 2402312644 is about 49013.3924963372. The cubic root of 2402312644 is about 1339.2958065787.

Adding to 2402312644 its reverse (4462132042), we get a palindrome (6864444686).

The spelling of 2402312644 in words is "two billion, four hundred two million, three hundred twelve thousand, six hundred forty-four".