1368887040 has 324 divisors, whose sum is σ = 4948290984. Its totient is φ = 362797056.

The previous prime is 1368887011. The next prime is 1368887063. The reversal of 1368887040 is 407888631.

It is a tau number, because it is divible by the number of its divisors (324).

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

It is a congruent number.

It is an unprimeable number.

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 in 35 ways as a sum of consecutive naturals, for example, 8397999 + ... + 8398161.

Almost surely, 2^1368887040 is an apocalyptic number.

1368887040 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 1368887040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2474145492).

1368887040 is an abundant number, since it is smaller than the sum of its proper divisors (3579403944).

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

1368887040 is an frugal number, since it uses more digits than its factorization.

1368887040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 1368887040 is about 36998.4734820236. The cubic root of 1368887040 is about 1110.3397061056.

The spelling of 1368887040 in words is "one billion, three hundred sixty-eight million, eight hundred eighty-seven thousand, forty".