2124242 has 4 divisors (see below), whose sum is σ = 3186366. Its totient is φ = 1062120.

The previous prime is 2124233. The next prime is 2124247. The reversal of 2124242 is 2424212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1466521 + 657721 = 1211^2 + 811^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2124242.

It is not an unprimeable number, because it can be changed into a prime (2124247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 531059 + ... + 531062.

2^2124242 is an apocalyptic number.

2124242 is a deficient number, since it is larger than the sum of its proper divisors (1062124).

2124242 is a wasteful number, since it uses less digits than its factorization.

2124242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062123.

The product of its digits is 256, while the sum is 17.

The square root of 2124242 is about 1457.4779586670. The cubic root of 2124242 is about 128.5487911938.

Adding to 2124242 its reverse (2424212), we get a palindrome (4548454).

The spelling of 2124242 in words is "two million, one hundred twenty-four thousand, two hundred forty-two".