2256658 has 8 divisors (see below), whose sum is σ = 3457152. Its totient is φ = 1104276.

The previous prime is 2256637. The next prime is 2256673. The reversal of 2256658 is 8566522.

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

It is a d-powerful number, because it can be written as 2¹⁶ + 2²¹ + 5² + 6⁶ + 6⁶ + 5⁴ + 8 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11910 + ... + 12097.

It is an arithmetic number, because the mean of its divisors is an integer number (432144).

2^2256658 is an apocalyptic number.

2256658 is a deficient number, since it is larger than the sum of its proper divisors (1200494).

2256658 is a wasteful number, since it uses less digits than its factorization.

2256658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24056.

The product of its digits is 28800, while the sum is 34.

The square root of 2256658 is about 1502.2176939445. The cubic root of 2256658 is about 131.1661935132.

The spelling of 2256658 in words is "two million, two hundred fifty-six thousand, six hundred fifty-eight".