213926441 has 4 divisors (see below), whose sum is σ = 216503952. Its totient is φ = 211348932.

The previous prime is 213926431. The next prime is 213926513. The reversal of 213926441 is 144629312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213926441 - 2²² = 209732137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 213926398 and 213926407.

It is not an unprimeable number, because it can be changed into a prime (213926431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1288631 + ... + 1288796.

It is an arithmetic number, because the mean of its divisors is an integer number (54125988).

Almost surely, 2^213926441 is an apocalyptic number.

It is an amenable number.

213926441 is a deficient number, since it is larger than the sum of its proper divisors (2577511).

213926441 is an equidigital number, since it uses as much as digits as its factorization.

213926441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2577510.

The product of its digits is 10368, while the sum is 32.

The square root of 213926441 is about 14626.2244273770. The cubic root of 213926441 is about 598.0738612287.

The spelling of 213926441 in words is "two hundred thirteen million, nine hundred twenty-six thousand, four hundred forty-one".