400216063 has 8 divisors (see below), whose sum is σ = 434957600. Its totient is φ = 366039648.

The previous prime is 400216027. The next prime is 400216067. The reversal of 400216063 is 360612004.

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

It is not a de Polignac number, because 400216063 - 2⁹ = 400215551 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 (400216067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139803 + ... + 142636.

It is an arithmetic number, because the mean of its divisors is an integer number (54369700).

Almost surely, 2^400216063 is an apocalyptic number.

400216063 is a deficient number, since it is larger than the sum of its proper divisors (34741537).

400216063 is a wasteful number, since it uses less digits than its factorization.

400216063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282561.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 400216063 is about 20005.4008457716. The cubic root of 400216063 is about 736.9389396651.

Adding to 400216063 its reverse (360612004), we get a palindrome (760828067).

The spelling of 400216063 in words is "four hundred million, two hundred sixteen thousand, sixty-three".