26030240 has 48 divisors (see below), whose sum is σ = 63172872. Its totient is φ = 10128384.

The previous prime is 26030239. The next prime is 26030243. The reversal of 26030240 is 4203062.

26030240 = T₃₆₉ + T₃₇₀ + ... + T₅₉₀.

It can be written as a sum of positive squares in 4 ways, for example, as 24482704 + 1547536 = 4948^2 + 1244^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26030243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3722 + ... + 8118.

Almost surely, 2^26030240 is an apocalyptic number.

26030240 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 26030240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31586436).

26030240 is an abundant number, since it is smaller than the sum of its proper divisors (37142632).

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

26030240 is a wasteful number, since it uses less digits than its factorization.

26030240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4449 (or 4441 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 26030240 is about 5101.9839278461. The cubic root of 26030240 is about 296.3644160353.

The spelling of 26030240 in words is "twenty-six million, thirty thousand, two hundred forty".