26597040 has 40 divisors (see below), whose sum is σ = 82451568. Its totient is φ = 7092480.

The previous prime is 26597003. The next prime is 26597047. The reversal of 26597040 is 4079562.

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

It is a junction number, because it is equal to n+sod(n) for n = 26596992 and 26597010.

It is not an unprimeable number, because it can be changed into a prime (26597047) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 55171 + ... + 55650.

Almost surely, 2^26597040 is an apocalyptic number.

26597040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26597040 is an abundant number, since it is smaller than the sum of its proper divisors (55854528).

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

26597040 is a wasteful number, since it uses less digits than its factorization.

26597040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110837 (or 110831 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 26597040 is about 5157.2318156158. The cubic root of 26597040 is about 298.5000687412.

Adding to 26597040 its product of nonzero digits (15120), we get a triangular number (26612160 = T₇₂₉₅).

The spelling of 26597040 in words is "twenty-six million, five hundred ninety-seven thousand, forty".