4255644 has 48 divisors (see below), whose sum is σ = 10983168. Its totient is φ = 1275648.

The previous prime is 4255637. The next prime is 4255673. The reversal of 4255644 is 4465524.

4255644 = T₂₅₇ + T₂₅₈ + ... + T₃₄₈.

It is a super-2 number, since 2×4255644² = 36221011709472, which contains 22 as substring.

It is a congruent number.

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, 4239 + ... + 5145.

It is an arithmetic number, because the mean of its divisors is an integer number (228816).

Almost surely, 2^4255644 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 4255644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5491584).

4255644 is an abundant number, since it is smaller than the sum of its proper divisors (6727524).

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

4255644 is a wasteful number, since it uses less digits than its factorization.

4255644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954 (or 952 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The square root of 4255644 is about 2062.9212297129. The cubic root of 4255644 is about 162.0522617544.

The spelling of 4255644 in words is "four million, two hundred fifty-five thousand, six hundred forty-four".