26270645 has 8 divisors (see below), whose sum is σ = 31596504. Its totient is φ = 20968704.

The previous prime is 26270617. The next prime is 26270659. The reversal of 26270645 is 54607262.

It can be written as a sum of positive squares in 4 ways, for example, as 7806436 + 18464209 = 2794^2 + 4297^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26270645 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3464 + ... + 8033.

It is an arithmetic number, because the mean of its divisors is an integer number (3949563).

Almost surely, 2^26270645 is an apocalyptic number.

It is an amenable number.

26270645 is a deficient number, since it is larger than the sum of its proper divisors (5325859).

26270645 is a wasteful number, since it uses less digits than its factorization.

26270645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11959.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 26270645 is about 5125.4897326987. The cubic root of 26270645 is about 297.2739897732.

It can be divided in two parts, 262 and 70645, that added together give a palindrome (70907).

The spelling of 26270645 in words is "twenty-six million, two hundred seventy thousand, six hundred forty-five".