1365868800 has 324 divisors, whose sum is σ = 5100548544. Its totient is φ = 348057600.

The previous prime is 1365868799. The next prime is 1365868807. The reversal of 1365868800 is 88685631.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1365868807) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1324285 + ... + 1325315.

Almost surely, 2^1365868800 is an apocalyptic number.

1365868800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1365868800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2550274272).

1365868800 is an abundant number, since it is smaller than the sum of its proper divisors (3734679744).

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

1365868800 is a wasteful number, since it uses less digits than its factorization.

1365868800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086 (or 1064 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 1365868800 is about 36957.6622637309. The cubic root of 1365868800 is about 1109.5230480723.

The spelling of 1365868800 in words is "one billion, three hundred sixty-five million, eight hundred sixty-eight thousand, eight hundred".