2263558 has 16 divisors (see below), whose sum is σ = 3824640. Its totient is φ = 995400.

The previous prime is 2263553. The next prime is 2263559. The reversal of 2263558 is 8553622.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2263553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 978 + ... + 2341.

It is an arithmetic number, because the mean of its divisors is an integer number (239040).

2^2263558 is an apocalyptic number.

2263558 is a deficient number, since it is larger than the sum of its proper divisors (1561082).

2263558 is a wasteful number, since it uses less digits than its factorization.

2263558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3363.

The product of its digits is 14400, while the sum is 31.

The square root of 2263558 is about 1504.5125456439. The cubic root of 2263558 is about 131.2997428990.

Subtracting 2263558 from its reverse (8553622), we obtain a square (6290064 = 2508²).

The spelling of 2263558 in words is "two million, two hundred sixty-three thousand, five hundred fifty-eight".