26289434 has 4 divisors (see below), whose sum is σ = 39434154. Its totient is φ = 13144716.

The previous prime is 26289433. The next prime is 26289449. The reversal of 26289434 is 43498262.

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., 25654225 + 635209 = 5065^2 + 797^2 .

It is a super-2 number, since 2×26289434² = 1382268680080712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26289433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6572357 + ... + 6572360.

Almost surely, 2^26289434 is an apocalyptic number.

26289434 is a deficient number, since it is larger than the sum of its proper divisors (13144720).

26289434 is a wasteful number, since it uses less digits than its factorization.

26289434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13144719.

The product of its digits is 82944, while the sum is 38.

The square root of 26289434 is about 5127.3223031130. The cubic root of 26289434 is about 297.3448438885.

The spelling of 26289434 in words is "twenty-six million, two hundred eighty-nine thousand, four hundred thirty-four".