26840028 has 24 divisors (see below), whose sum is σ = 62822032. Its totient is φ = 8918784.

The previous prime is 26839973. The next prime is 26840071. The reversal of 26840028 is 82004862.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 26839977 and 26840004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 726 + ... + 7362.

Almost surely, 2^26840028 is an apocalyptic number.

It is an amenable number.

26840028 is an abundant number, since it is smaller than the sum of its proper divisors (35982004).

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

26840028 is a wasteful number, since it uses less digits than its factorization.

26840028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6981 (or 6979 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 26840028 is about 5180.7362411148. The cubic root of 26840028 is about 299.4063371006.

The spelling of 26840028 in words is "twenty-six million, eight hundred forty thousand, twenty-eight".