2242442 has 4 divisors (see below), whose sum is σ = 3363666. Its totient is φ = 1121220.

The previous prime is 2242441. The next prime is 2242469. The reversal of 2242442 is 2442422.

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., 1739761 + 502681 = 1319^2 + 709^2 .

It is a super-2 number, since 2×2242442² = 10057092246728, which contains 22 as substring.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (2242441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560609 + ... + 560612.

2^2242442 is an apocalyptic number.

2242442 is a deficient number, since it is larger than the sum of its proper divisors (1121224).

2242442 is a wasteful number, since it uses less digits than its factorization.

2242442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121223.

The product of its digits is 1024, while the sum is 20.

The square root of 2242442 is about 1497.4785474256. The cubic root of 2242442 is about 130.8901824250.

Subtracting from 2242442 its sum of digits (20), we obtain a palindrome (2242422).

Adding to 2242442 its reverse (2442422), we get a palindrome (4684864).

The spelling of 2242442 in words is "two million, two hundred forty-two thousand, four hundred forty-two".