2243412 has 36 divisors (see below), whose sum is σ = 5736276. Its totient is φ = 739200.

The previous prime is 2243399. The next prime is 2243419. The reversal of 2243412 is 2143422.

It can be written as a sum of positive squares in 2 ways, for example, as 1089936 + 1153476 = 1044^2 + 1074^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3328 + ... + 3944.

It is an arithmetic number, because the mean of its divisors is an integer number (159341).

2^2243412 is an apocalyptic number.

It is an amenable number.

2243412 is an abundant number, since it is smaller than the sum of its proper divisors (3492864).

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

2243412 is a wasteful number, since it uses less digits than its factorization.

2243412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728 (or 723 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 2243412 is about 1497.8023901703. The cubic root of 2243412 is about 130.9090525042.

Adding to 2243412 its reverse (2143422), we get a palindrome (4386834).

It can be divided in two parts, 22 and 43412, that added together give a palindrome (43434).

The spelling of 2243412 in words is "two million, two hundred forty-three thousand, four hundred twelve".