26897340 has 48 divisors (see below), whose sum is σ = 76557600. Its totient is φ = 7054080.

The previous prime is 26897329. The next prime is 26897359. The reversal of 26897340 is 4379862.

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, 15 + ... + 7334.

It is an arithmetic number, because the mean of its divisors is an integer number (1594950).

Almost surely, 2^26897340 is an apocalyptic number.

26897340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26897340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38278800).

26897340 is an abundant number, since it is smaller than the sum of its proper divisors (49660260).

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

26897340 is a wasteful number, since it uses less digits than its factorization.

26897340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7422 (or 7420 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 26897340 is about 5186.2645516788. The cubic root of 26897340 is about 299.6192948608.

The spelling of 26897340 in words is "twenty-six million, eight hundred ninety-seven thousand, three hundred forty".