400335213 has 4 divisors (see below), whose sum is σ = 533780288. Its totient is φ = 266890140.

The previous prime is 400335191. The next prime is 400335293. The reversal of 400335213 is 312533004.

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 not a de Polignac number, because 400335213 - 2¹⁰ = 400334189 is a prime.

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 400335213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400335293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66722533 + ... + 66722538.

It is an arithmetic number, because the mean of its divisors is an integer number (133445072).

Almost surely, 2^400335213 is an apocalyptic number.

It is an amenable number.

400335213 is a deficient number, since it is larger than the sum of its proper divisors (133445075).

400335213 is a wasteful number, since it uses less digits than its factorization.

400335213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133445074.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 400335213 is about 20008.3785699891. The cubic root of 400335213 is about 737.0120648013.

Adding to 400335213 its reverse (312533004), we get a palindrome (712868217).

The spelling of 400335213 in words is "four hundred million, three hundred thirty-five thousand, two hundred thirteen".