400230563 has 4 divisors (see below), whose sum is σ = 400561728. Its totient is φ = 399899400.

The previous prime is 400230559. The next prime is 400230581. The reversal of 400230563 is 365032004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 400230563 - 2² = 400230559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400230503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163763 + ... + 166188.

It is an arithmetic number, because the mean of its divisors is an integer number (100140432).

Almost surely, 2^400230563 is an apocalyptic number.

400230563 is a deficient number, since it is larger than the sum of its proper divisors (331165).

400230563 is a wasteful number, since it uses less digits than its factorization.

400230563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331164.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 400230563 is about 20005.7632446253. The cubic root of 400230563 is about 736.9478394291.

Adding to 400230563 its reverse (365032004), we get a palindrome (765262567).

The spelling of 400230563 in words is "four hundred million, two hundred thirty thousand, five hundred sixty-three".