26829945 has 24 divisors (see below), whose sum is σ = 46702656. Its totient is φ = 14248608.

The previous prime is 26829931. The next prime is 26829947. The reversal of 26829945 is 54992862.

It is not a de Polignac number, because 26829945 - 2²¹ = 24732793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 26829945.

It is not an unprimeable number, because it can be changed into a prime (26829947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10702 + ... + 12968.

It is an arithmetic number, because the mean of its divisors is an integer number (1945944).

Almost surely, 2^26829945 is an apocalyptic number.

It is an amenable number.

26829945 is a deficient number, since it is larger than the sum of its proper divisors (19872711).

26829945 is a wasteful number, since it uses less digits than its factorization.

26829945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541 (or 2538 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 26829945 is about 5179.7630254675. The cubic root of 26829945 is about 299.3688397202.

The spelling of 26829945 in words is "twenty-six million, eight hundred twenty-nine thousand, nine hundred forty-five".