1368272736 has 72 divisors (see below), whose sum is σ = 4035160584. Its totient is φ = 456088320.

The previous prime is 1368272723. The next prime is 1368272747. The reversal of 1368272736 is 6372728631.

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 1368272691 and 1368272700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80205 + ... + 95756.

It is an arithmetic number, because the mean of its divisors is an integer number (56043897).

Almost surely, 2^1368272736 is an apocalyptic number.

1368272736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1368272736 is an abundant number, since it is smaller than the sum of its proper divisors (2666887848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1368272736 is an equidigital number, since it uses as much as digits as its factorization.

1368272736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175986 (or 175966 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 1368272736 is about 36990.1708025254. The cubic root of 1368272736 is about 1110.1735886297.

The spelling of 1368272736 in words is "one billion, three hundred sixty-eight million, two hundred seventy-two thousand, seven hundred thirty-six".