26328740 has 12 divisors (see below), whose sum is σ = 55290396. Its totient is φ = 10531488.

The previous prime is 26328739. The next prime is 26328749. The reversal of 26328740 is 4782362.

It can be written as a sum of positive squares in 2 ways, for example, as 4351396 + 21977344 = 2086^2 + 4688^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 26328697 and 26328706.

It is not an unprimeable number, because it can be changed into a prime (26328749) 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 3 ways as a sum of consecutive naturals, for example, 658199 + ... + 658238.

It is an arithmetic number, because the mean of its divisors is an integer number (4607533).

Almost surely, 2^26328740 is an apocalyptic number.

26328740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26328740 is an abundant number, since it is smaller than the sum of its proper divisors (28961656).

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

26328740 is a wasteful number, since it uses less digits than its factorization.

26328740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316446 (or 1316444 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 26328740 is about 5131.1538663345. The cubic root of 26328740 is about 297.4929593701.

The spelling of 26328740 in words is "twenty-six million, three hundred twenty-eight thousand, seven hundred forty".