26990445 has 16 divisors (see below), whose sum is σ = 44674560. Its totient is φ = 13898304.

The previous prime is 26990413. The next prime is 26990459. The reversal of 26990445 is 54409962.

It is not a de Polignac number, because 26990445 - 2⁵ = 26990413 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30589 + ... + 31458.

It is an arithmetic number, because the mean of its divisors is an integer number (2792160).

Almost surely, 2^26990445 is an apocalyptic number.

It is an amenable number.

26990445 is a deficient number, since it is larger than the sum of its proper divisors (17684115).

26990445 is a wasteful number, since it uses less digits than its factorization.

26990445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62084.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 26990445 is about 5195.2329110445. The cubic root of 26990445 is about 299.9646069357.

The spelling of 26990445 in words is "twenty-six million, nine hundred ninety thousand, four hundred forty-five".