400011213 has 8 divisors (see below), whose sum is σ = 609540928. Its totient is φ = 228577824.

The previous prime is 400011203. The next prime is 400011217. The reversal of 400011213 is 312110004.

It is a happy number.

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

It is not a de Polignac number, because 400011213 - 2⁶ = 400011149 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 (400011217) 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, 9524056 + ... + 9524097.

It is an arithmetic number, because the mean of its divisors is an integer number (76192616).

Almost surely, 2^400011213 is an apocalyptic number.

It is an amenable number.

400011213 is a deficient number, since it is larger than the sum of its proper divisors (209529715).

400011213 is a wasteful number, since it uses less digits than its factorization.

400011213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19048163.

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

The square root of 400011213 is about 20000.2803230355. The cubic root of 400011213 is about 736.8131845046.

Adding to 400011213 its reverse (312110004), we get a palindrome (712121217).

It can be divided in two parts, 40001 and 1213, that added together give a palindrome (41214).

The spelling of 400011213 in words is "four hundred million, eleven thousand, two hundred thirteen".