2269812 has 12 divisors (see below), whose sum is σ = 5296256. Its totient is φ = 756600.

The previous prime is 2269807. The next prime is 2269819. The reversal of 2269812 is 2189622.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2269812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2269819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94564 + ... + 94587.

2^2269812 is an apocalyptic number.

It is an amenable number.

2269812 is an abundant number, since it is smaller than the sum of its proper divisors (3026444).

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

2269812 is a wasteful number, since it uses less digits than its factorization.

2269812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189158 (or 189156 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 2269812 is about 1506.5895260488. The cubic root of 2269812 is about 131.4205546915.

It can be divided in two parts, 2269 and 812, that added together give a triangular number (3081 = T₇₈).

The spelling of 2269812 in words is "two million, two hundred sixty-nine thousand, eight hundred twelve".