4256445 has 8 divisors (see below), whose sum is σ = 6810336. Its totient is φ = 2270096.

The previous prime is 4256431. The next prime is 4256459. The reversal of 4256445 is 5446524.

It is an interprime number because it is at equal distance from previous prime (4256431) and next prime (4256459).

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

It is a cyclic number.

It is not a de Polignac number, because 4256445 - 2⁴ = 4256429 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141867 + ... + 141896.

It is an arithmetic number, because the mean of its divisors is an integer number (851292).

Almost surely, 2^4256445 is an apocalyptic number.

It is an amenable number.

4256445 is a deficient number, since it is larger than the sum of its proper divisors (2553891).

4256445 is a wasteful number, since it uses less digits than its factorization.

4256445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283771.

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

The square root of 4256445 is about 2063.1153627463. The cubic root of 4256445 is about 162.0624283096.

The spelling of 4256445 in words is "four million, two hundred fifty-six thousand, four hundred forty-five".