26442634 has 4 divisors (see below), whose sum is σ = 39663954. Its totient is φ = 13221316.

The previous prime is 26442629. The next prime is 26442641. The reversal of 26442634 is 43624462.

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., 15186609 + 11256025 = 3897^2 + 3355^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26442596 and 26442605.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610657 + ... + 6610660.

Almost surely, 2^26442634 is an apocalyptic number.

26442634 is a deficient number, since it is larger than the sum of its proper divisors (13221320).

26442634 is a wasteful number, since it uses less digits than its factorization.

26442634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13221319.

The product of its digits is 27648, while the sum is 31.

The square root of 26442634 is about 5142.2401733097. The cubic root of 26442634 is about 297.9213115962.

The spelling of 26442634 in words is "twenty-six million, four hundred forty-two thousand, six hundred thirty-four".