26298980 has 24 divisors (see below), whose sum is σ = 55987512. Its totient is φ = 10374912.

The previous prime is 26298977. The next prime is 26298997. The reversal of 26298980 is 8989262.

It can be written as a sum of positive squares in 4 ways, for example, as 8726116 + 17572864 = 2954^2 + 4192^2 .

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, 7547 + ... + 10466.

It is an arithmetic number, because the mean of its divisors is an integer number (2332813).

Almost surely, 2^26298980 is an apocalyptic number.

26298980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26298980 is an abundant number, since it is smaller than the sum of its proper divisors (29688532).

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

26298980 is a wasteful number, since it uses less digits than its factorization.

26298980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18095 (or 18093 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 26298980 is about 5128.2531138781. The cubic root of 26298980 is about 297.3808293264.

The spelling of 26298980 in words is "twenty-six million, two hundred ninety-eight thousand, nine hundred eighty".