4392256 has 56 divisors (see below), whose sum is σ = 10094976. Its totient is φ = 1873920.

The previous prime is 4392221. The next prime is 4392259. The reversal of 4392256 is 6522934.

It is a super-3 number, since 3×4392256³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4392259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11785 + ... + 12151.

Almost surely, 2^4392256 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 4392256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5047488).

4392256 is an abundant number, since it is smaller than the sum of its proper divisors (5702720).

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

4392256 is a wasteful number, since it uses less digits than its factorization.

4392256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 397 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 4392256 is about 2095.7709798544. The cubic root of 4392256 is about 163.7680639707.

The spelling of 4392256 in words is "four million, three hundred ninety-two thousand, two hundred fifty-six".