2242242 has 20 divisors (see below), whose sum is σ = 5024646. Its totient is φ = 747360.

The previous prime is 2242231. The next prime is 2242277. The reversal of 2242242 is 2422422.

It can be written as a sum of positive squares in only one way, i.e., 2047761 + 194481 = 1431^2 + 441^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6759 + ... + 7082.

2^2242242 is an apocalyptic number.

2242242 is an abundant number, since it is smaller than the sum of its proper divisors (2782404).

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

2242242 is a wasteful number, since it uses less digits than its factorization.

2242242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13855 (or 13846 counting only the distinct ones).

The product of its digits is 512, while the sum is 18.

The square root of 2242242 is about 1497.4117670167. The cubic root of 2242242 is about 130.8862910103.

Adding to 2242242 its reverse (2422422), we get a palindrome (4664664).

It can be divided in two parts, 2 and 242242, that multiplied together give a palindrome (484484).

The spelling of 2242242 in words is "two million, two hundred forty-two thousand, two hundred forty-two".