400422230 has 32 divisors (see below), whose sum is σ = 781903584. Its totient is φ = 146762496.

The previous prime is 400422181. The next prime is 400422247. The reversal of 400422230 is 32224004.

It is a junction number, because it is equal to n+sod(n) for n = 400422199 and 400422208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6569 + ... + 29051.

It is an arithmetic number, because the mean of its divisors is an integer number (24434487).

Almost surely, 2^400422230 is an apocalyptic number.

400422230 is a deficient number, since it is larger than the sum of its proper divisors (381481354).

400422230 is a wasteful number, since it uses less digits than its factorization.

400422230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22640.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 400422230 is about 20010.5529658728. The cubic root of 400422230 is about 737.0654599984.

Adding to 400422230 its reverse (32224004), we get a palindrome (432646234).

The spelling of 400422230 in words is "four hundred million, four hundred twenty-two thousand, two hundred thirty".