26275640 has 16 divisors (see below), whose sum is σ = 59120280. Its totient is φ = 10510240.

The previous prime is 26275633. The next prime is 26275657. The reversal of 26275640 is 4657262.

It is a junction number, because it is equal to n+sod(n) for n = 26275597 and 26275606.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 328406 + ... + 328485.

Almost surely, 2^26275640 is an apocalyptic number.

26275640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26275640 is an abundant number, since it is smaller than the sum of its proper divisors (32844640).

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

26275640 is a wasteful number, since it uses less digits than its factorization.

26275640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656902 (or 656898 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 26275640 is about 5125.9769800498. The cubic root of 26275640 is about 297.2928294258.

The spelling of 26275640 in words is "twenty-six million, two hundred seventy-five thousand, six hundred forty".