26253240 has 64 divisors (see below), whose sum is σ = 84823200. Its totient is φ = 6461952.

The previous prime is 26253203. The next prime is 26253251. The reversal of 26253240 is 4235262.

It is a super-2 number, since 2×26253240² = 1378465220995200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 26253240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6855 + ... + 9974.

Almost surely, 2^26253240 is an apocalyptic number.

26253240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26253240 is an abundant number, since it is smaller than the sum of its proper divisors (58569960).

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

26253240 is a wasteful number, since it uses less digits than its factorization.

26253240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16856 (or 16852 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 26253240 is about 5123.7915648473. The cubic root of 26253240 is about 297.2083246317.

The spelling of 26253240 in words is "twenty-six million, two hundred fifty-three thousand, two hundred forty".