26428028 has 24 divisors (see below), whose sum is σ = 51098880. Its totient is φ = 11859120.

The previous prime is 26428007. The next prime is 26428043. The reversal of 26428028 is 82082462.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 26427985 and 26428003.

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, 326 + ... + 7277.

It is an arithmetic number, because the mean of its divisors is an integer number (2129120).

Almost surely, 2^26428028 is an apocalyptic number.

It is an amenable number.

26428028 is a deficient number, since it is larger than the sum of its proper divisors (24670852).

26428028 is a wasteful number, since it uses less digits than its factorization.

26428028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7697 (or 7695 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 26428028 is about 5140.8197789847. The cubic root of 26428028 is about 297.8664476705.

The spelling of 26428028 in words is "twenty-six million, four hundred twenty-eight thousand, twenty-eight".