26303040 has 84 divisors (see below), whose sum is σ = 90481404. Its totient is φ = 7013376.

The previous prime is 26303027. The next prime is 26303047. The reversal of 26303040 is 4030362.

26303040 is a `hidden beast` number, since 2 + 630 + 30 + 4 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15492096 + 10810944 = 3936^2 + 3288^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (26303047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1687 + ... + 7446.

Almost surely, 2^26303040 is an apocalyptic number.

26303040 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 26303040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45240702).

26303040 is an abundant number, since it is smaller than the sum of its proper divisors (64178364).

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

26303040 is a wasteful number, since it uses less digits than its factorization.

26303040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9156 (or 9143 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 26303040 is about 5128.6489448977. The cubic root of 26303040 is about 297.3961316188.

The spelling of 26303040 in words is "twenty-six million, three hundred three thousand, forty".