26720394 has 8 divisors (see below), whose sum is σ = 53440800. Its totient is φ = 8906796.

The previous prime is 26720389. The next prime is 26720417. The reversal of 26720394 is 49302762.

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

26720394 is an admirable number.

It is a Curzon 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 3 ways as a sum of consecutive naturals, for example, 2226694 + ... + 2226705.

It is an arithmetic number, because the mean of its divisors is an integer number (6680100).

Almost surely, 2^26720394 is an apocalyptic number.

26720394 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

26720394 is a wasteful number, since it uses less digits than its factorization.

26720394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4453404.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 26720394 is about 5169.1773039817. The cubic root of 26720394 is about 298.9608267752.

The spelling of 26720394 in words is "twenty-six million, seven hundred twenty thousand, three hundred ninety-four".