4255986 has 16 divisors (see below), whose sum is σ = 9728064. Its totient is φ = 1215984.

The previous prime is 4255963. The next prime is 4255987. The reversal of 4255986 is 6895524.

It is a super-2 number, since 2×4255986² = 36226833664392, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4255987) 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, 50625 + ... + 50708.

It is an arithmetic number, because the mean of its divisors is an integer number (608004).

Almost surely, 2^4255986 is an apocalyptic number.

4255986 is an abundant number, since it is smaller than the sum of its proper divisors (5472078).

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

4255986 is a wasteful number, since it uses less digits than its factorization.

4255986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101345.

The product of its digits is 86400, while the sum is 39.

The square root of 4255986 is about 2063.0041202092. The cubic root of 4255986 is about 162.0566026868.

The spelling of 4255986 in words is "four million, two hundred fifty-five thousand, nine hundred eighty-six".