400922 has 4 divisors (see below), whose sum is σ = 601386. Its totient is φ = 200460.

The previous prime is 400903. The next prime is 400927. The reversal of 400922 is 229004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 292681 + 108241 = 541^2 + 329^2 .

It is a super-3 number, since 3×400922³ = 193330742653732344, which contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 400922.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 400922.

It is not an unprimeable number, because it can be changed into a prime (400927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100229 + ... + 100232.

2⁴⁰⁰⁹²² is an apocalyptic number.

400922 is a deficient number, since it is larger than the sum of its proper divisors (200464).

400922 is a wasteful number, since it uses less digits than its factorization.

400922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200463.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 400922 is about 633.1840174862. The cubic root of 400922 is about 73.7371978161.

Adding to 400922 its reverse (229004), we get a palindrome (629926).

The spelling of 400922 in words is "four hundred thousand, nine hundred twenty-two".