2642426 has 4 divisors (see below), whose sum is σ = 3963642. Its totient is φ = 1321212.

The previous prime is 2642389. The next prime is 2642449. The reversal of 2642426 is 6242462.

2642426 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., 1918225 + 724201 = 1385^2 + 851^2 .

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 2642395 and 2642404.

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, 660605 + ... + 660608.

2^2642426 is an apocalyptic number.

2642426 is a deficient number, since it is larger than the sum of its proper divisors (1321216).

2642426 is a wasteful number, since it uses less digits than its factorization.

2642426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321215.

The product of its digits is 4608, while the sum is 26.

The square root of 2642426 is about 1625.5540593902. The cubic root of 2642426 is about 138.2507867066.

Adding to 2642426 its reverse (6242462), we get a palindrome (8884888).

The spelling of 2642426 in words is "two million, six hundred forty-two thousand, four hundred twenty-six".