1356768 has 72 divisors (see below), whose sum is σ = 4416048. Its totient is φ = 387072.

The previous prime is 1356763. The next prime is 1356811. The reversal of 1356768 is 8676531.

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

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

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1356763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1680 + ... + 2352.

It is an arithmetic number, because the mean of its divisors is an integer number (61334).

2^1356768 is an apocalyptic number.

1356768 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 1356768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2208024).

1356768 is an abundant number, since it is smaller than the sum of its proper divisors (3059280).

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

1356768 is a wasteful number, since it uses less digits than its factorization.

1356768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696 (or 685 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 1356768 is about 1164.8038461475. The cubic root of 1356768 is about 110.7053299530.

It can be divided in two parts, 135 and 6768, that added together give a triangular number (6903 = T₁₁₇).

The spelling of 1356768 in words is "one million, three hundred fifty-six thousand, seven hundred sixty-eight".