26949128 has 8 divisors (see below), whose sum is σ = 50529630. Its totient is φ = 13474560.

The previous prime is 26949103. The next prime is 26949151. The reversal of 26949128 is 82194962.

It can be written as a sum of positive squares in only one way, i.e., 23020804 + 3928324 = 4798^2 + 1982^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1684313 + ... + 1684328.

Almost surely, 2^26949128 is an apocalyptic number.

It is an amenable number.

26949128 is a deficient number, since it is larger than the sum of its proper divisors (23580502).

26949128 is a wasteful number, since it uses less digits than its factorization.

26949128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3368647 (or 3368643 counting only the distinct ones).

The product of its digits is 62208, while the sum is 41.

The square root of 26949128 is about 5191.2549542476. The cubic root of 26949128 is about 299.8114667274.

The spelling of 26949128 in words is "twenty-six million, nine hundred forty-nine thousand, one hundred twenty-eight".