400606227 has 12 divisors (see below), whose sum is σ = 661318320. Its totient is φ = 228917808.

The previous prime is 400606187. The next prime is 400606231. The reversal of 400606227 is 722606004.

It is not a de Polignac number, because 400606227 - 2⁶ = 400606163 is a prime.

It is a super-2 number, since 2×400606227² = 320970698222351058, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 400606227.

It is not an unprimeable number, because it can be changed into a prime (400606237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3179352 + ... + 3179477.

It is an arithmetic number, because the mean of its divisors is an integer number (55109860).

Almost surely, 2^400606227 is an apocalyptic number.

400606227 is a deficient number, since it is larger than the sum of its proper divisors (260712093).

400606227 is a wasteful number, since it uses less digits than its factorization.

400606227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6358842 (or 6358839 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 400606227 is about 20015.1499369852. The cubic root of 400606227 is about 737.1783384020.

The spelling of 400606227 in words is "four hundred million, six hundred six thousand, two hundred twenty-seven".