400566223 has 8 divisors (see below), whose sum is σ = 424949328. Its totient is φ = 376274304.

The previous prime is 400566211. The next prime is 400566233. The reversal of 400566223 is 322665004.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400566223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400566191 and 400566200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400566233) 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, 13636 + ... + 31417.

It is an arithmetic number, because the mean of its divisors is an integer number (53118666).

Almost surely, 2^400566223 is an apocalyptic number.

400566223 is a deficient number, since it is larger than the sum of its proper divisors (24383105).

400566223 is a wasteful number, since it uses less digits than its factorization.

400566223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45593.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 400566223 is about 20014.1505690349. The cubic root of 400566223 is about 737.1537997054.

The spelling of 400566223 in words is "four hundred million, five hundred sixty-six thousand, two hundred twenty-three".