26724540 has 48 divisors (see below), whose sum is σ = 75331872. Its totient is φ = 7078656.

The previous prime is 26724479. The next prime is 26724553. The reversal of 26724540 is 4542762.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 26724498 and 26724507.

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, 8002 + ... + 10838.

It is an arithmetic number, because the mean of its divisors is an integer number (1569414).

Almost surely, 2^26724540 is an apocalyptic number.

26724540 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 26724540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37665936).

26724540 is an abundant number, since it is smaller than the sum of its proper divisors (48607332).

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

26724540 is a wasteful number, since it uses less digits than its factorization.

26724540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3006 (or 3004 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 26724540 is about 5169.5783193603. The cubic root of 26724540 is about 298.9762884669.

The spelling of 26724540 in words is "twenty-six million, seven hundred twenty-four thousand, five hundred forty".