400546223 has 16 divisors (see below), whose sum is σ = 499820544. Its totient is φ = 311840160.

The previous prime is 400546213. The next prime is 400546229. The reversal of 400546223 is 322645004.

It is a cyclic number.

It is not a de Polignac number, because 400546223 - 2⁴ = 400546207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400546192 and 400546201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400546229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168761 + ... + 171117.

It is an arithmetic number, because the mean of its divisors is an integer number (31238784).

Almost surely, 2^400546223 is an apocalyptic number.

400546223 is a deficient number, since it is larger than the sum of its proper divisors (99274321).

400546223 is a wasteful number, since it uses less digits than its factorization.

400546223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4582.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 400546223 is about 20013.6509163121. The cubic root of 400546223 is about 737.1415309714.

The spelling of 400546223 in words is "four hundred million, five hundred forty-six thousand, two hundred twenty-three".