4256988 has 24 divisors (see below), whose sum is σ = 10456320. Its totient is φ = 1344240.

The previous prime is 4256981. The next prime is 4257017. The reversal of 4256988 is 8896524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4256981) 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 7 ways as a sum of consecutive naturals, for example, 9108 + ... + 9563.

It is an arithmetic number, because the mean of its divisors is an integer number (435680).

Almost surely, 2^4256988 is an apocalyptic number.

It is an amenable number.

4256988 is an abundant number, since it is smaller than the sum of its proper divisors (6199332).

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

4256988 is a wasteful number, since it uses less digits than its factorization.

4256988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18697 (or 18695 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 4256988 is about 2063.2469556502. The cubic root of 4256988 is about 162.0693195186.

The spelling of 4256988 in words is "four million, two hundred fifty-six thousand, nine hundred eighty-eight".