26579720 has 64 divisors (see below), whose sum is σ = 63141120. Its totient is φ = 10050304.

The previous prime is 26579717. The next prime is 26579723. The reversal of 26579720 is 2797562.

It is an interprime number because it is at equal distance from previous prime (26579717) and next prime (26579723).

It is not an unprimeable number, because it can be changed into a prime (26579723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153554 + ... + 153726.

It is an arithmetic number, because the mean of its divisors is an integer number (986580).

Almost surely, 2^26579720 is an apocalyptic number.

26579720 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 26579720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31570560).

26579720 is an abundant number, since it is smaller than the sum of its proper divisors (36561400).

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

26579720 is a wasteful number, since it uses less digits than its factorization.

26579720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 26579720 is about 5155.5523467423. The cubic root of 26579720 is about 298.4352602282.

The spelling of 26579720 in words is "twenty-six million, five hundred seventy-nine thousand, seven hundred twenty".