400342922 has 32 divisors (see below), whose sum is σ = 718405632. Its totient is φ = 163597104.

The previous prime is 400342919. The next prime is 400342967. The reversal of 400342922 is 229243004.

It is a junction number, because it is equal to n+sod(n) for n = 400342891 and 400342900.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 109943 + ... + 113525.

It is an arithmetic number, because the mean of its divisors is an integer number (22450176).

Almost surely, 2^400342922 is an apocalyptic number.

400342922 is a deficient number, since it is larger than the sum of its proper divisors (318062710).

400342922 is a wasteful number, since it uses less digits than its factorization.

400342922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3962.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 400342922 is about 20008.5712133575. The cubic root of 400342922 is about 737.0167954948.

Adding to 400342922 its reverse (229243004), we get a palindrome (629585926).

The spelling of 400342922 in words is "four hundred million, three hundred forty-two thousand, nine hundred twenty-two".