400044422 has 8 divisors (see below), whose sum is σ = 600289272. Its totient is φ = 199948000.

The previous prime is 400044419. The next prime is 400044443. The reversal of 400044422 is 224440004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 400044394 and 400044403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30104 + ... + 41307.

It is an arithmetic number, because the mean of its divisors is an integer number (75036159).

Almost surely, 2^400044422 is an apocalyptic number.

400044422 is a deficient number, since it is larger than the sum of its proper divisors (200244850).

400044422 is a wasteful number, since it uses less digits than its factorization.

400044422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74214.

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 400044422 is about 20001.1105191687. The cubic root of 400044422 is about 736.8335740597.

Adding to 400044422 its reverse (224440004), we get a palindrome (624484426).

The spelling of 400044422 in words is "four hundred million, forty-four thousand, four hundred twenty-two".