1363968 has 78 divisors (see below), whose sum is σ = 4046354. Its totient is φ = 442368.

The previous prime is 1363963. The next prime is 1363979. The reversal of 1363968 is 8693631.

It is a happy number.

1363968 is a `hidden beast` number, since 13 + 639 + 6 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1327104 + 36864 = 1152^2 + 192^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1363963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36846 + ... + 36882.

2^1363968 is an apocalyptic number.

1363968 is a gapful number since it is divisible by the number (18) 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 1363968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2023177).

1363968 is an abundant number, since it is smaller than the sum of its proper divisors (2682386).

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

1363968 is an equidigital number, since it uses as much as digits as its factorization.

1363968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67 (or 42 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 1363968 is about 1167.8904058173. The cubic root of 1363968 is about 110.9008122949.

The spelling of 1363968 in words is "one million, three hundred sixty-three thousand, nine hundred sixty-eight".