26980398 has 16 divisors (see below), whose sum is σ = 59956560. Its totient is φ = 8993448.

The previous prime is 26980391. The next prime is 26980441. The reversal of 26980398 is 89308962.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26980391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249765 + ... + 249872.

It is an arithmetic number, because the mean of its divisors is an integer number (3747285).

Almost surely, 2^26980398 is an apocalyptic number.

26980398 is an abundant number, since it is smaller than the sum of its proper divisors (32976162).

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

26980398 is a wasteful number, since it uses less digits than its factorization.

26980398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499648 (or 499642 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 26980398 is about 5194.2658769070. The cubic root of 26980398 is about 299.9273824237.

The spelling of 26980398 in words is "twenty-six million, nine hundred eighty thousand, three hundred ninety-eight".