26750640 has 80 divisors (see below), whose sum is σ = 94779648. Its totient is φ = 6114048.

The previous prime is 26750629. The next prime is 26750653. The reversal of 26750640 is 4605762.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 26750598 and 26750607.

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 15 ways as a sum of consecutive naturals, for example, 6282 + ... + 9641.

Almost surely, 2^26750640 is an apocalyptic number.

26750640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26750640 is an abundant number, since it is smaller than the sum of its proper divisors (68029008).

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

26750640 is a wasteful number, since it uses less digits than its factorization.

26750640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15946 (or 15940 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 26750640 is about 5172.1020871595. The cubic root of 26750640 is about 299.0735865831.

It can be divided in two parts, 267506 and 40, that added together give a triangular number (267546 = T₇₃₁).

The spelling of 26750640 in words is "twenty-six million, seven hundred fifty thousand, six hundred forty".