2266438 has 4 divisors (see below), whose sum is σ = 3399660. Its totient is φ = 1133218.

The previous prime is 2266427. The next prime is 2266447. The reversal of 2266438 is 8346622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8346622 = 2 ⋅4173311.

It is a super-4 number, since 4×2266438⁴ (a number of 27 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566608 + ... + 566611.

It is an arithmetic number, because the mean of its divisors is an integer number (849915).

2^2266438 is an apocalyptic number.

2266438 is a deficient number, since it is larger than the sum of its proper divisors (1133222).

2266438 is a wasteful number, since it uses less digits than its factorization.

2266438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133221.

The product of its digits is 13824, while the sum is 31.

The square root of 2266438 is about 1505.4693620263. The cubic root of 2266438 is about 131.3554049729.

It can be divided in two parts, 2266 and 438, that added together give a square (2704 = 52²).

The spelling of 2266438 in words is "two million, two hundred sixty-six thousand, four hundred thirty-eight".