213426441 has 8 divisors (see below), whose sum is σ = 316187360. Its totient is φ = 142284276.

The previous prime is 213426439. The next prime is 213426461. The reversal of 213426441 is 144624312.

It is a happy number.

213426441 is a `hidden beast` number, since 2 + 13 + 4 + 2 + 644 + 1 = 666.

It is not a de Polignac number, because 213426441 - 2¹ = 213426439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 7904683 = 213426441 / (2 + 1 + 3 + 4 + 2 + 6 + 4 + 4 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213426461) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 3952315 + ... + 3952368.

It is an arithmetic number, because the mean of its divisors is an integer number (39523420).

Almost surely, 2^213426441 is an apocalyptic number.

It is an amenable number.

213426441 is a deficient number, since it is larger than the sum of its proper divisors (102760919).

213426441 is an equidigital number, since it uses as much as digits as its factorization.

213426441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7904692 (or 7904686 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 213426441 is about 14609.1218421916. The cubic root of 213426441 is about 597.6075479684.

The spelling of 213426441 in words is "two hundred thirteen million, four hundred twenty-six thousand, four hundred forty-one".