26289628 has 12 divisors (see below), whose sum is σ = 46047400. Its totient is φ = 13133232.

The previous prime is 26289607. The next prime is 26289629. The reversal of 26289628 is 82698262.

It is a happy number.

It is a super-2 number, since 2×26289628² = 1382289080756768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26289629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4075 + ... + 8317.

Almost surely, 2^26289628 is an apocalyptic number.

It is an amenable number.

26289628 is a deficient number, since it is larger than the sum of its proper divisors (19757772).

26289628 is a wasteful number, since it uses less digits than its factorization.

26289628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5796 (or 5794 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 26289628 is about 5127.3412213349. The cubic root of 26289628 is about 297.3455752946.

The spelling of 26289628 in words is "twenty-six million, two hundred eighty-nine thousand, six hundred twenty-eight".