26726401 has 8 divisors (see below), whose sum is σ = 28826280. Its totient is φ = 24632832.

The previous prime is 26726393. The next prime is 26726417. The reversal of 26726401 is 10462762.

It can be written as a sum of positive squares in 4 ways, for example, as 1324801 + 25401600 = 1151^2 + 5040^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26726401 - 2³ = 26726393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26726401.

It is not an unprimeable number, because it can be changed into a prime (26726461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10971 + ... + 13183.

It is an arithmetic number, because the mean of its divisors is an integer number (3603285).

Almost surely, 2^26726401 is an apocalyptic number.

It is an amenable number.

26726401 is a deficient number, since it is larger than the sum of its proper divisors (2099879).

26726401 is a wasteful number, since it uses less digits than its factorization.

26726401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 26726401 is about 5169.7583115654. The cubic root of 26726401 is about 298.9832281805.

The spelling of 26726401 in words is "twenty-six million, seven hundred twenty-six thousand, four hundred one".