26863240 has 16 divisors (see below), whose sum is σ = 60442380. Its totient is φ = 10745280.

The previous prime is 26863229. The next prime is 26863259. The reversal of 26863240 is 4236862.

It can be written as a sum of positive squares in 2 ways, for example, as 26481316 + 381924 = 5146^2 + 618^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335751 + ... + 335830.

Almost surely, 2^26863240 is an apocalyptic number.

26863240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26863240 is an abundant number, since it is smaller than the sum of its proper divisors (33579140).

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

26863240 is a wasteful number, since it uses less digits than its factorization.

26863240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671592 (or 671588 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 26863240 is about 5182.9759791070. The cubic root of 26863240 is about 299.4926238634.

The spelling of 26863240 in words is "twenty-six million, eight hundred sixty-three thousand, two hundred forty".