404043213 has 8 divisors (see below), whose sum is σ = 615684928. Its totient is φ = 230881824.

The previous prime is 404043193. The next prime is 404043217. The reversal of 404043213 is 312340404.

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

It is not a de Polignac number, because 404043213 - 2⁶ = 404043149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 19240153 = 404043213 / (4 + 0 + 4 + 0 + 4 + 3 + 2 + 1 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 404043213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404043217) 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, 9620056 + ... + 9620097.

It is an arithmetic number, because the mean of its divisors is an integer number (76960616).

Almost surely, 2^404043213 is an apocalyptic number.

It is an amenable number.

404043213 is a deficient number, since it is larger than the sum of its proper divisors (211641715).

404043213 is a wasteful number, since it uses less digits than its factorization.

404043213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19240163.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 404043213 is about 20100.8261770505. The cubic root of 404043213 is about 739.2805358149.

Adding to 404043213 its reverse (312340404), we get a palindrome (716383617).

The spelling of 404043213 in words is "four hundred four million, forty-three thousand, two hundred thirteen".