404354213 has 4 divisors (see below), whose sum is σ = 404399340. Its totient is φ = 404309088.

The previous prime is 404354201. The next prime is 404354233. The reversal of 404354213 is 312453404.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 196504324 + 207849889 = 14018^2 + 14417^2 .

It is a cyclic number.

It is not a de Polignac number, because 404354213 - 2⁶ = 404354149 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 (404354233) 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, 4070 + ... + 28727.

It is an arithmetic number, because the mean of its divisors is an integer number (101099835).

Almost surely, 2^404354213 is an apocalyptic number.

It is an amenable number.

404354213 is a deficient number, since it is larger than the sum of its proper divisors (45127).

404354213 is a wasteful number, since it uses less digits than its factorization.

404354213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45126.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 404354213 is about 20108.5606894178. The cubic root of 404354213 is about 739.4701667538.

The spelling of 404354213 in words is "four hundred four million, three hundred fifty-four thousand, two hundred thirteen".