26680472 has 64 divisors (see below), whose sum is σ = 62603520. Its totient is φ = 10378368.

The previous prime is 26680469. The next prime is 26680517. The reversal of 26680472 is 27408662.

It is a super-2 number, since 2×26680472² = 1423695172285568, 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 15 ways as a sum of consecutive naturals, for example, 48503 + ... + 49049.

It is an arithmetic number, because the mean of its divisors is an integer number (978180).

Almost surely, 2^26680472 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 26680472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31301760).

26680472 is an abundant number, since it is smaller than the sum of its proper divisors (35923048).

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

26680472 is a wasteful number, since it uses less digits than its factorization.

26680472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 26680472 is about 5165.3143176384. The cubic root of 26680472 is about 298.8118636148.

The spelling of 26680472 in words is "twenty-six million, six hundred eighty thousand, four hundred seventy-two".