26246440 has 32 divisors (see below), whose sum is σ = 64424160. Its totient is φ = 9544000.

The previous prime is 26246401. The next prime is 26246447. The reversal of 26246440 is 4464262.

It is a super-2 number, since 2×26246440² = 1377751225347200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26246399 and 26246408.

It is not an unprimeable number, because it can be changed into a prime (26246447) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 29386 + ... + 30265.

It is an arithmetic number, because the mean of its divisors is an integer number (2013255).

Almost surely, 2^26246440 is an apocalyptic number.

26246440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26246440 is an abundant number, since it is smaller than the sum of its proper divisors (38177720).

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

26246440 is a wasteful number, since it uses less digits than its factorization.

26246440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59673 (or 59669 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 26246440 is about 5123.1279507738. The cubic root of 26246440 is about 297.1826618802.

The spelling of 26246440 in words is "twenty-six million, two hundred forty-six thousand, four hundred forty".