4255646 has 8 divisors (see below), whose sum is σ = 6394080. Its totient is φ = 2124288.

The previous prime is 4255637. The next prime is 4255673. The reversal of 4255646 is 6465524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×4255646² = 36221045754632, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155 + ... + 2921.

It is an arithmetic number, because the mean of its divisors is an integer number (799260).

Almost surely, 2^4255646 is an apocalyptic number.

4255646 is a deficient number, since it is larger than the sum of its proper divisors (2138434).

4255646 is a wasteful number, since it uses less digits than its factorization.

4255646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3538.

The product of its digits is 28800, while the sum is 32.

The square root of 4255646 is about 2062.9217144623. The cubic root of 4255646 is about 162.0522871407.

The spelling of 4255646 in words is "four million, two hundred fifty-five thousand, six hundred forty-six".