401420 has 12 divisors (see below), whose sum is σ = 843024. Its totient is φ = 160560.

The previous prime is 401417. The next prime is 401473. The reversal of 401420 is 24104.

It is a super-2 number, since 2×401420² = 322276032800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10016 + ... + 10055.

It is an arithmetic number, because the mean of its divisors is an integer number (70252).

2⁴⁰¹⁴²⁰ is an apocalyptic number.

It is an amenable number.

401420 is an abundant number, since it is smaller than the sum of its proper divisors (441604).

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

401420 is a wasteful number, since it uses less digits than its factorization.

401420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20080 (or 20078 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 401420 is about 633.5771460525. The cubic root of 401420 is about 73.7677157479.

Adding to 401420 its reverse (24104), we get a palindrome (425524).

The spelling of 401420 in words is "four hundred one thousand, four hundred twenty", and thus it is an iban number.