26828145 has 64 divisors (see below), whose sum is σ = 50561280. Its totient is φ = 13478400.

The previous prime is 26828129. The next prime is 26828147. The reversal of 26828145 is 54182862.

26828145 = 531² + 532² + ... + 612².

It is not a de Polignac number, because 26828145 - 2⁴ = 26828129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26828147) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 204730 + ... + 204860.

It is an arithmetic number, because the mean of its divisors is an integer number (790020).

Almost surely, 2^26828145 is an apocalyptic number.

It is an amenable number.

26828145 is a deficient number, since it is larger than the sum of its proper divisors (23733135).

26828145 is a wasteful number, since it uses less digits than its factorization.

26828145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 217 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 26828145 is about 5179.5892694305. The cubic root of 26828145 is about 299.3621447635.

The spelling of 26828145 in words is "twenty-six million, eight hundred twenty-eight thousand, one hundred forty-five".