401622 has 32 divisors (see below), whose sum is σ = 913920. Its totient is φ = 116640.

The previous prime is 401593. The next prime is 401627. The reversal of 401622 is 226104.

It is a super-2 number, since 2×401622² = 322600461768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1347 + ... + 1617.

It is an arithmetic number, because the mean of its divisors is an integer number (28560).

2⁴⁰¹⁶²² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (456960).

401622 is an abundant number, since it is smaller than the sum of its proper divisors (512298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401622 is a wasteful number, since it uses less digits than its factorization.

401622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 401622 is about 633.7365383186. The cubic root of 401622 is about 73.7800873120.

Adding to 401622 its reverse (226104), we get a palindrome (627726).

The spelling of 401622 in words is "four hundred one thousand, six hundred twenty-two".