400414220 has 12 divisors (see below), whose sum is σ = 840869904. Its totient is φ = 160165680.

The previous prime is 400414211. The next prime is 400414247. The reversal of 400414220 is 22414004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10010336 + ... + 10010375.

It is an arithmetic number, because the mean of its divisors is an integer number (70072492).

Almost surely, 2^400414220 is an apocalyptic number.

It is an amenable number.

400414220 is an abundant number, since it is smaller than the sum of its proper divisors (440455684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400414220 is a wasteful number, since it uses less digits than its factorization.

400414220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20020720 (or 20020718 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 400414220 is about 20010.3528204777. The cubic root of 400414220 is about 737.0605452415.

Adding to 400414220 its reverse (22414004), we get a palindrome (422828224).

The spelling of 400414220 in words is "four hundred million, four hundred fourteen thousand, two hundred twenty".