26285240 has 16 divisors (see below), whose sum is σ = 59141880. Its totient is φ = 10514080.

The previous prime is 26285221. The next prime is 26285243. The reversal of 26285240 is 4258262.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26285243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328526 + ... + 328605.

Almost surely, 2^26285240 is an apocalyptic number.

26285240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26285240 is an abundant number, since it is smaller than the sum of its proper divisors (32856640).

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

26285240 is a wasteful number, since it uses less digits than its factorization.

26285240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657142 (or 657138 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 26285240 is about 5126.9133013930. The cubic root of 26285240 is about 297.3290310642.

The spelling of 26285240 in words is "twenty-six million, two hundred eighty-five thousand, two hundred forty".