1368440715 has 16 divisors (see below), whose sum is σ = 2189963808. Its totient is φ = 729682176.

The previous prime is 1368440681. The next prime is 1368440747. The reversal of 1368440715 is 5170448631.

1368440715 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1368440715 - 2⁸ = 1368440459 is a prime.

It is a super-2 number, since 2×1368440715² = 3745259980939422450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134487 + ... + 144303.

It is an arithmetic number, because the mean of its divisors is an integer number (136872738).

Almost surely, 2^1368440715 is an apocalyptic number.

1368440715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1368440715 is a deficient number, since it is larger than the sum of its proper divisors (821523093).

1368440715 is an equidigital number, since it uses as much as digits as its factorization.

1368440715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19118.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 1368440715 is about 36992.4413225188. The cubic root of 1368440715 is about 1110.2190177349.

The spelling of 1368440715 in words is "one billion, three hundred sixty-eight million, four hundred forty thousand, seven hundred fifteen".