400628211 has 8 divisors (see below), whose sum is σ = 534511824. Its totient is φ = 266915040.

The previous prime is 400628201. The next prime is 400628227. The reversal of 400628211 is 112826004.

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

It is not a de Polignac number, because 400628211 - 2⁹ = 400627699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400628201) 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 7 ways as a sum of consecutive naturals, for example, 37020 + ... + 46601.

It is an arithmetic number, because the mean of its divisors is an integer number (66813978).

Almost surely, 2^400628211 is an apocalyptic number.

400628211 is a deficient number, since it is larger than the sum of its proper divisors (133883613).

400628211 is a wasteful number, since it uses less digits than its factorization.

400628211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85221.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 400628211 is about 20015.6991134459. The cubic root of 400628211 is about 737.1918228256.

The spelling of 400628211 in words is "four hundred million, six hundred twenty-eight thousand, two hundred eleven".