26919081 has 24 divisors (see below), whose sum is σ = 46393440. Its totient is φ = 15381576.

The previous prime is 26919077. The next prime is 26919089. The reversal of 26919081 is 18091962.

26919081 is nontrivially palindromic in base 12.

It is not a de Polignac number, because 26919081 - 2² = 26919077 is a prime.

It is a super-2 number, since 2×26919081² = 1449273843769122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26919089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8851 + ... + 11496.

It is an arithmetic number, because the mean of its divisors is an integer number (1933060).

Almost surely, 2^26919081 is an apocalyptic number.

26919081 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

26919081 is a deficient number, since it is larger than the sum of its proper divisors (19474359).

26919081 is a wasteful number, since it uses less digits than its factorization.

26919081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20370 (or 20357 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 26919081 is about 5188.3601455566. The cubic root of 26919081 is about 299.7000001002.

The spelling of 26919081 in words is "twenty-six million, nine hundred nineteen thousand, eighty-one".