3646368 has 72 divisors (see below), whose sum is σ = 11321856. Its totient is φ = 1104000.

The previous prime is 3646361. The next prime is 3646369. The reversal of 3646368 is 8636463.

3646368 is a `hidden beast` number, since 3 + 646 + 3 + 6 + 8 = 666.

3646368 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 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 (3646361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2593 + ... + 3743.

It is an arithmetic number, because the mean of its divisors is an integer number (157248).

Almost surely, 2^3646368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3646368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5660928).

3646368 is an abundant number, since it is smaller than the sum of its proper divisors (7675488).

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

3646368 is a wasteful number, since it uses less digits than its factorization.

3646368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178 (or 1167 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 3646368 is about 1909.5465430306. The cubic root of 3646368 is about 153.9170858553.

The spelling of 3646368 in words is "three million, six hundred forty-six thousand, three hundred sixty-eight".