26975728 has 40 divisors (see below), whose sum is σ = 57371328. Its totient is φ = 12210432.

The previous prime is 26975693. The next prime is 26975731. The reversal of 26975728 is 82757962.

It is a super-2 number, since 2×26975728² = 1455379802259968, 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 in 7 ways as a sum of consecutive naturals, for example, 9801 + ... + 12247.

Almost surely, 2^26975728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26975728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28685664).

26975728 is an abundant number, since it is smaller than the sum of its proper divisors (30395600).

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

26975728 is a wasteful number, since it uses less digits than its factorization.

26975728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2521 (or 2515 counting only the distinct ones).

The product of its digits is 423360, while the sum is 46.

The square root of 26975728 is about 5193.8163232829. The cubic root of 26975728 is about 299.9100767524.

The spelling of 26975728 in words is "twenty-six million, nine hundred seventy-five thousand, seven hundred twenty-eight".