2542426 has 4 divisors (see below), whose sum is σ = 3813642. Its totient is φ = 1271212.

The previous prime is 2542417. The next prime is 2542429. The reversal of 2542426 is 6242452.

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., 1957201 + 585225 = 1399^2 + 765^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2542426.

It is not an unprimeable number, because it can be changed into a prime (2542429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635605 + ... + 635608.

2^2542426 is an apocalyptic number.

2542426 is a deficient number, since it is larger than the sum of its proper divisors (1271216).

2542426 is a wasteful number, since it uses less digits than its factorization.

2542426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271215.

The product of its digits is 3840, while the sum is 25.

The square root of 2542426 is about 1594.4986672933. The cubic root of 2542426 is about 136.4843242116.

Adding to 2542426 its reverse (6242452), we get a palindrome (8784878).

The spelling of 2542426 in words is "two million, five hundred forty-two thousand, four hundred twenty-six".