400422220244 has 12 divisors (see below), whose sum is σ = 700924341600. Its totient is φ = 200158122648.

The previous prime is 400422220241. The next prime is 400422220249. The reversal of 400422220244 is 442022224004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400422220241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13229864 + ... + 13260095.

It is an arithmetic number, because the mean of its divisors is an integer number (58410361800).

Almost surely, 2^400422220244 is an apocalyptic number.

It is an amenable number.

400422220244 is a deficient number, since it is larger than the sum of its proper divisors (300502121356).

400422220244 is a wasteful number, since it uses less digits than its factorization.

400422220244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26493742 (or 26493740 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 400422220244 its reverse (442022224004), we get a palindrome (842444444248).

The spelling of 400422220244 in words is "four hundred billion, four hundred twenty-two million, two hundred twenty thousand, two hundred forty-four".