3641256 has 48 divisors (see below), whose sum is σ = 9977760. Its totient is φ = 1199520.

The previous prime is 3641243. The next prime is 3641263. The reversal of 3641256 is 6521463.

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 11 ways as a sum of consecutive naturals, for example, 7171 + ... + 7661.

It is an arithmetic number, because the mean of its divisors is an integer number (207870).

Almost surely, 2^3641256 is an apocalyptic number.

3641256 is a gapful number since it is divisible by the number (36) 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 3641256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4988880).

3641256 is an abundant number, since it is smaller than the sum of its proper divisors (6336504).

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

3641256 is a wasteful number, since it uses less digits than its factorization.

3641256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606 (or 599 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 3641256 is about 1908.2075358828. The cubic root of 3641256 is about 153.8451245572.

The spelling of 3641256 in words is "three million, six hundred forty-one thousand, two hundred fifty-six".