26128213 has 8 divisors (see below), whose sum is σ = 26628480. Its totient is φ = 25631760.

The previous prime is 26128189. The next prime is 26128231. The reversal of 26128213 is 31282162.

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

It is a cyclic number.

It is not a de Polignac number, because 26128213 - 2⁵ = 26128181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26123213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15456 + ... + 17062.

It is an arithmetic number, because the mean of its divisors is an integer number (3328560).

Almost surely, 2^26128213 is an apocalyptic number.

It is an amenable number.

26128213 is a deficient number, since it is larger than the sum of its proper divisors (500267).

26128213 is a wasteful number, since it uses less digits than its factorization.

26128213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1907.

The product of its digits is 1152, while the sum is 25.

The square root of 26128213 is about 5111.5763713360. The cubic root of 26128213 is about 296.7357707695.

The spelling of 26128213 in words is "twenty-six million, one hundred twenty-eight thousand, two hundred thirteen".