26945644 has 12 divisors (see below), whose sum is σ = 51441768. Its totient is φ = 12248000.

The previous prime is 26945623. The next prime is 26945647. The reversal of 26945644 is 44654962.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 26945597 and 26945606.

It is not an unprimeable number, because it can be changed into a prime (26945647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306157 + ... + 306244.

It is an arithmetic number, because the mean of its divisors is an integer number (4286814).

Almost surely, 2^26945644 is an apocalyptic number.

It is an amenable number.

26945644 is a deficient number, since it is larger than the sum of its proper divisors (24496124).

26945644 is a wasteful number, since it uses less digits than its factorization.

26945644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612416 (or 612414 counting only the distinct ones).

The product of its digits is 207360, while the sum is 40.

The square root of 26945644 is about 5190.9193790696. The cubic root of 26945644 is about 299.7985462330.

It can be divided in two parts, 2694 and 5644, that added together give a palindrome (8338).

The spelling of 26945644 in words is "twenty-six million, nine hundred forty-five thousand, six hundred forty-four".