400622 has 8 divisors (see below), whose sum is σ = 636336. Its totient is φ = 188512.

The previous prime is 400619. The next prime is 400643. The reversal of 400622 is 226004.

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 = 400597 and 400606.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 400622.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5858 + ... + 5925.

It is an arithmetic number, because the mean of its divisors is an integer number (79542).

2⁴⁰⁰⁶²² is an apocalyptic number.

400622 is a deficient number, since it is larger than the sum of its proper divisors (235714).

400622 is a wasteful number, since it uses less digits than its factorization.

400622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11802.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 400622 is about 632.9470751967. The cubic root of 400622 is about 73.7188013207.

Adding to 400622 its reverse (226004), we get a palindrome (626626).

The spelling of 400622 in words is "four hundred thousand, six hundred twenty-two".