26520240 has 40 divisors (see below), whose sum is σ = 82213488. Its totient is φ = 7072000.

The previous prime is 26520229. The next prime is 26520251. The reversal of 26520240 is 4202562.

It is an interprime number because it is at equal distance from previous prime (26520229) and next prime (26520251).

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55011 + ... + 55490.

Almost surely, 2^26520240 is an apocalyptic number.

26520240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26520240 is an abundant number, since it is smaller than the sum of its proper divisors (55693248).

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

26520240 is a wasteful number, since it uses less digits than its factorization.

26520240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110517 (or 110511 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 26520240 is about 5149.7805778499. The cubic root of 26520240 is about 298.2124815239.

The spelling of 26520240 in words is "twenty-six million, five hundred twenty thousand, two hundred forty".