405022 has 8 divisors (see below), whose sum is σ = 610416. Its totient is φ = 201552.

The previous prime is 405011. The next prime is 405029. The reversal of 405022 is 220504.

It is a happy number.

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

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 404993 and 405011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405029) by changing a digit.

405022 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303 + ... + 949.

It is an arithmetic number, because the mean of its divisors is an integer number (76302).

2⁴⁰⁵⁰²² is an apocalyptic number.

405022 is a deficient number, since it is larger than the sum of its proper divisors (205394).

405022 is a wasteful number, since it uses less digits than its factorization.

405022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962.

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 405022 is about 636.4133876656. The cubic root of 405022 is about 73.9877018764.

Adding to 405022 its reverse (220504), we get a palindrome (625526).

It can be divided in two parts, 40502 and 2, that added together give a palindrome (40504).

The spelling of 405022 in words is "four hundred five thousand, twenty-two".