4013256 has 64 divisors (see below), whose sum is σ = 11390400. Its totient is φ = 1168128.

The previous prime is 4013227. The next prime is 4013267. The reversal of 4013256 is 6523104.

It is a happy number.

It is a super-2 number, since 2×4013256² = 32212447443072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5590 + ... + 6266.

It is an arithmetic number, because the mean of its divisors is an integer number (177975).

Almost surely, 2^4013256 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 4013256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5695200).

4013256 is an abundant number, since it is smaller than the sum of its proper divisors (7377144).

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

4013256 is a wasteful number, since it uses less digits than its factorization.

4013256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718 (or 714 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 4013256 is about 2003.3112588911. The cubic root of 4013256 is about 158.9152667468.

The spelling of 4013256 in words is "four million, thirteen thousand, two hundred fifty-six".