401344213 has 4 divisors (see below), whose sum is σ = 405026380. Its totient is φ = 397662048.

The previous prime is 401344199. The next prime is 401344243. The reversal of 401344213 is 312443104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 118330884 + 283013329 = 10878^2 + 16823^2 .

It is a cyclic number.

It is not a de Polignac number, because 401344213 - 2¹³ = 401336021 is a prime.

It is a super-2 number, since 2×401344213² = 322154354617178738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401344243) 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, 1840920 + ... + 1841137.

It is an arithmetic number, because the mean of its divisors is an integer number (101256595).

Almost surely, 2^401344213 is an apocalyptic number.

It is an amenable number.

401344213 is a deficient number, since it is larger than the sum of its proper divisors (3682167).

401344213 is a wasteful number, since it uses less digits than its factorization.

401344213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3682166.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 401344213 is about 20033.5771393928. The cubic root of 401344213 is about 737.6307307463.

Adding to 401344213 its reverse (312443104), we get a palindrome (713787317).

The spelling of 401344213 in words is "four hundred one million, three hundred forty-four thousand, two hundred thirteen".