26430842 has 4 divisors (see below), whose sum is σ = 39646266. Its totient is φ = 13215420.

The previous prime is 26430829. The next prime is 26430857. The reversal of 26430842 is 24803462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24803462 = 2 ⋅12401731.

It can be written as a sum of positive squares in only one way, i.e., 26429881 + 961 = 5141^2 + 31^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6607709 + ... + 6607712.

Almost surely, 2^26430842 is an apocalyptic number.

26430842 is a deficient number, since it is larger than the sum of its proper divisors (13215424).

26430842 is a wasteful number, since it uses less digits than its factorization.

26430842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13215423.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 26430842 is about 5141.0934634570. The cubic root of 26430842 is about 297.8770193565.

It can be divided in two parts, 26430 and 842, that added together give a palindrome (27272).

The spelling of 26430842 in words is "twenty-six million, four hundred thirty thousand, eight hundred forty-two".