26304040 has 64 divisors (see below), whose sum is σ = 69494400. Its totient is φ = 8771328.

The previous prime is 26304007. The next prime is 26304053. The reversal of 26304040 is 4040362.

It is a junction number, because it is equal to n+sod(n) for n = 26303999 and 26304017.

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, 9091 + ... + 11629.

It is an arithmetic number, because the mean of its divisors is an integer number (1085850).

Almost surely, 2^26304040 is an apocalyptic number.

26304040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26304040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34747200).

26304040 is an abundant number, since it is smaller than the sum of its proper divisors (43190360).

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

26304040 is a wasteful number, since it uses less digits than its factorization.

26304040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2594 (or 2590 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 26304040 is about 5128.7464355337. The cubic root of 26304040 is about 297.3999004146.

It can be divided in two parts, 2630 and 4040, that added together give a triangular number (6670 = T₁₁₅).

The spelling of 26304040 in words is "twenty-six million, three hundred four thousand, forty".