7313440388 has 12 divisors (see below), whose sum is σ = 12869232012. Its totient is φ = 3636516960.

The previous prime is 7313440367. The next prime is 7313440399. The reversal of 7313440388 is 8830443137.

It can be written as a sum of positive squares in 2 ways, for example, as 417466624 + 6895973764 = 20432^2 + 83042^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5049995 + ... + 5051442.

It is an arithmetic number, because the mean of its divisors is an integer number (1072436001).

Almost surely, 2^7313440388 is an apocalyptic number.

It is an amenable number.

7313440388 is a deficient number, since it is larger than the sum of its proper divisors (5555791624).

7313440388 is a wasteful number, since it uses less digits than its factorization.

7313440388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10101622 (or 10101620 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 7313440388 is about 85518.6552045809. The cubic root of 7313440388 is about 1941.0672191569.

The spelling of 7313440388 in words is "seven billion, three hundred thirteen million, four hundred forty thousand, three hundred eighty-eight".