2263818 has 16 divisors (see below), whose sum is σ = 4546080. Its totient is φ = 751536.

The previous prime is 2263817. The next prime is 2263829. The reversal of 2263818 is 8183622.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2263817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1228 + ... + 2456.

It is an arithmetic number, because the mean of its divisors is an integer number (284130).

2^2263818 is an apocalyptic number.

2263818 is an abundant number, since it is smaller than the sum of its proper divisors (2282262).

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

2263818 is a wasteful number, since it uses less digits than its factorization.

2263818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541.

The product of its digits is 4608, while the sum is 30.

The square root of 2263818 is about 1504.5989498866. The cubic root of 2263818 is about 131.3047698854.

It can be divided in two parts, 2263 and 818, that added together give a triangular number (3081 = T₇₈).

The spelling of 2263818 in words is "two million, two hundred sixty-three thousand, eight hundred eighteen".