400422430 has 32 divisors (see below), whose sum is σ = 746884800. Its totient is φ = 154382592.

The previous prime is 400422409. The next prime is 400422457. The reversal of 400422430 is 34224004.

It is a junction number, because it is equal to n+sod(n) for n = 400422398 and 400422407.

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, 326799 + ... + 328021.

It is an arithmetic number, because the mean of its divisors is an integer number (23340150).

Almost surely, 2^400422430 is an apocalyptic number.

400422430 is a deficient number, since it is larger than the sum of its proper divisors (346462370).

400422430 is a wasteful number, since it uses less digits than its factorization.

400422430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 400422430 is about 20010.5579632353. The cubic root of 400422430 is about 737.0655827131.

Adding to 400422430 its reverse (34224004), we get a palindrome (434646434).

The spelling of 400422430 in words is "four hundred million, four hundred twenty-two thousand, four hundred thirty".