26680945 has 8 divisors (see below), whose sum is σ = 32230080. Its totient is φ = 21202800.

The previous prime is 26680919. The next prime is 26680949. The reversal of 26680945 is 54908662.

It is a happy number.

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

It is not a de Polignac number, because 26680945 - 2⁷ = 26680817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26680898 and 26680907.

It is not an unprimeable number, because it can be changed into a prime (26680949) 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, 16915 + ... + 18424.

It is an arithmetic number, because the mean of its divisors is an integer number (4028760).

Almost surely, 2^26680945 is an apocalyptic number.

It is an amenable number.

26680945 is a deficient number, since it is larger than the sum of its proper divisors (5549135).

26680945 is a wasteful number, since it uses less digits than its factorization.

26680945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35495.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 26680945 is about 5165.3601036133. The cubic root of 26680945 is about 298.8136294153.

The spelling of 26680945 in words is "twenty-six million, six hundred eighty thousand, nine hundred forty-five".