26715240 has 48 divisors (see below), whose sum is σ = 86825700. Its totient is φ = 7123968.

The previous prime is 26715239. The next prime is 26715251. The reversal of 26715240 is 4251762.

It can be written as a sum of positive squares in 2 ways, for example, as 24860196 + 1855044 = 4986^2 + 1362^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36745 + ... + 37464.

Almost surely, 2^26715240 is an apocalyptic number.

26715240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26715240 is an abundant number, since it is smaller than the sum of its proper divisors (60110460).

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

26715240 is a wasteful number, since it uses less digits than its factorization.

26715240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74226 (or 74219 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 26715240 is about 5168.6787479974. The cubic root of 26715240 is about 298.9416037155.

The spelling of 26715240 in words is "twenty-six million, seven hundred fifteen thousand, two hundred forty".