26728384 has 14 divisors (see below), whose sum is σ = 53039264. Its totient is φ = 13364160.

The previous prime is 26728379. The next prime is 26728399. The reversal of 26728384 is 48382762.

It is a super-2 number, since 2×26728384² = 1428813022502912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208752 + ... + 208879.

Almost surely, 2^26728384 is an apocalyptic number.

It is an amenable number.

26728384 is a deficient number, since it is larger than the sum of its proper divisors (26310880).

26728384 is an equidigital number, since it uses as much as digits as its factorization.

26728384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417643 (or 417633 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 26728384 is about 5169.9500964710. The cubic root of 26728384 is about 298.9906224804.

The spelling of 26728384 in words is "twenty-six million, seven hundred twenty-eight thousand, three hundred eighty-four".