3974256 has 120 divisors (see below), whose sum is σ = 13134576. Its totient is φ = 1105920.

The previous prime is 3974237. The next prime is 3974261. The reversal of 3974256 is 6524793.

3974256 = 25³ + 26³ + ... + 63³.

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

It is a d-powerful number, because it can be written as 3⁶ + 9³ + 7⁶ + 4⁴ + 2²¹ + 5⁷ + 6⁸ .

It is a self number, because there is not a number n which added to its sum of digits gives 3974256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20496 + ... + 20688.

Almost surely, 2^3974256 is an apocalyptic number.

3974256 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 3974256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6567288).

3974256 is an abundant number, since it is smaller than the sum of its proper divisors (9160320).

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

3974256 is a wasteful number, since it uses less digits than its factorization.

3974256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 222 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 3974256 is about 1993.5536110173. The cubic root of 3974256 is about 158.3988215401.

The spelling of 3974256 in words is "three million, nine hundred seventy-four thousand, two hundred fifty-six".