26997404 has 48 divisors (see below), whose sum is σ = 58705920. Its totient is φ = 10601280.

The previous prime is 26997403. The next prime is 26997431. The reversal of 26997404 is 40479962.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26997403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15674 + ... + 17310.

It is an arithmetic number, because the mean of its divisors is an integer number (1223040).

Almost surely, 2^26997404 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 26997404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29352960).

26997404 is an abundant number, since it is smaller than the sum of its proper divisors (31708516).

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

26997404 is a wasteful number, since it uses less digits than its factorization.

26997404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698 (or 1696 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 26997404 is about 5195.9026164854. The cubic root of 26997404 is about 299.9903848770.

The spelling of 26997404 in words is "twenty-six million, nine hundred ninety-seven thousand, four hundred four".