400211013 has 4 divisors (see below), whose sum is σ = 533614688. Its totient is φ = 266807340.

The previous prime is 400211011. The next prime is 400211027. The reversal of 400211013 is 310112004.

It is a happy number.

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 400211013 - 2¹ = 400211011 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 400211013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400211011) 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, 66701833 + ... + 66701838.

It is an arithmetic number, because the mean of its divisors is an integer number (133403672).

Almost surely, 2^400211013 is an apocalyptic number.

It is an amenable number.

400211013 is a deficient number, since it is larger than the sum of its proper divisors (133403675).

400211013 is a wasteful number, since it uses less digits than its factorization.

400211013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133403674.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 400211013 is about 20005.2746294571. The cubic root of 400211013 is about 736.9358400416.

Adding to 400211013 its reverse (310112004), we get a palindrome (710323017).

Subtracting from 400211013 its reverse (310112004), we obtain a palindrome (90099009).

The spelling of 400211013 in words is "four hundred million, two hundred eleven thousand, thirteen".