26722442 has 4 divisors (see below), whose sum is σ = 40083666. Its totient is φ = 13361220.

The previous prime is 26722429. The next prime is 26722463. The reversal of 26722442 is 24422762.

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., 20967241 + 5755201 = 4579^2 + 2399^2 .

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, 6680609 + ... + 6680612.

Almost surely, 2^26722442 is an apocalyptic number.

26722442 is a deficient number, since it is larger than the sum of its proper divisors (13361224).

26722442 is a wasteful number, since it uses less digits than its factorization.

26722442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13361223.

The product of its digits is 10752, while the sum is 29.

The square root of 26722442 is about 5169.3753974731. The cubic root of 26722442 is about 298.9684645883.

The spelling of 26722442 in words is "twenty-six million, seven hundred twenty-two thousand, four hundred forty-two".