400023230 has 16 divisors (see below), whose sum is σ = 730184544. Its totient is φ = 157755360.

The previous prime is 400023223. The next prime is 400023257. The reversal of 400023230 is 32320004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280997 + ... + 282416.

It is an arithmetic number, because the mean of its divisors is an integer number (45636534).

Almost surely, 2^400023230 is an apocalyptic number.

400023230 is a deficient number, since it is larger than the sum of its proper divisors (330161314).

400023230 is a wasteful number, since it uses less digits than its factorization.

400023230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563491.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 400023230 is about 20000.5807415685. The cubic root of 400023230 is about 736.8205627939.

Adding to 400023230 its reverse (32320004), we get a palindrome (432343234).

The spelling of 400023230 in words is "four hundred million, twenty-three thousand, two hundred thirty".