2522642 has 4 divisors (see below), whose sum is σ = 3783966. Its totient is φ = 1261320.

The previous prime is 2522633. The next prime is 2522657. The reversal of 2522642 is 2462252.

2522642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 2163841 + 358801 = 1471^2 + 599^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630659 + ... + 630662.

2^2522642 is an apocalyptic number.

2522642 is a deficient number, since it is larger than the sum of its proper divisors (1261324).

2522642 is a wasteful number, since it uses less digits than its factorization.

2522642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261323.

The product of its digits is 1920, while the sum is 23.

The square root of 2522642 is about 1588.2827204248. The cubic root of 2522642 is about 136.1293823529.

Adding to 2522642 its reverse (2462252), we get a palindrome (4984894).

The spelling of 2522642 in words is "two million, five hundred twenty-two thousand, six hundred forty-two".