26809434 has 16 divisors (see below), whose sum is σ = 59576640. Its totient is φ = 8936460.

The previous prime is 26809429. The next prime is 26809441. The reversal of 26809434 is 43490862.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 in 7 ways as a sum of consecutive naturals, for example, 248182 + ... + 248289.

It is an arithmetic number, because the mean of its divisors is an integer number (3723540).

Almost surely, 2^26809434 is an apocalyptic number.

26809434 is an abundant number, since it is smaller than the sum of its proper divisors (32767206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26809434 is a wasteful number, since it uses less digits than its factorization.

26809434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496482 (or 496476 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 26809434 is about 5177.7827300882. The cubic root of 26809434 is about 299.2925329460.

The spelling of 26809434 in words is "twenty-six million, eight hundred nine thousand, four hundred thirty-four".