26286644 has 12 divisors (see below), whose sum is σ = 47588100. Its totient is φ = 12690048.

The previous prime is 26286629. The next prime is 26286647. The reversal of 26286644 is 44668262.

It can be written as a sum of positive squares in 2 ways, for example, as 4571044 + 21715600 = 2138^2 + 4660^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 26286598 and 26286607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26286647) 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, 113189 + ... + 113420.

It is an arithmetic number, because the mean of its divisors is an integer number (3965675).

Almost surely, 2^26286644 is an apocalyptic number.

It is an amenable number.

26286644 is a deficient number, since it is larger than the sum of its proper divisors (21301456).

26286644 is a wasteful number, since it uses less digits than its factorization.

26286644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226642 (or 226640 counting only the distinct ones).

The product of its digits is 110592, while the sum is 38.

The square root of 26286644 is about 5127.0502240567. The cubic root of 26286644 is about 297.3343248150.

The spelling of 26286644 in words is "twenty-six million, two hundred eighty-six thousand, six hundred forty-four".