26424540 has 72 divisors (see below), whose sum is σ = 81292848. Its totient is φ = 6946560.

The previous prime is 26424533. The next prime is 26424553. The reversal of 26424540 is 4542462.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12135 + ... + 14145.

Almost surely, 2^26424540 is an apocalyptic number.

26424540 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 26424540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40646424).

26424540 is an abundant number, since it is smaller than the sum of its proper divisors (54868308).

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

26424540 is a wasteful number, since it uses less digits than its factorization.

26424540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2099 (or 2094 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 26424540 is about 5140.4805222858. The cubic root of 26424540 is about 297.8533428476.

The spelling of 26424540 in words is "twenty-six million, four hundred twenty-four thousand, five hundred forty".