401427 has 24 divisors (see below), whose sum is σ = 646464. Its totient is φ = 238464.

The previous prime is 401417. The next prime is 401473. The reversal of 401427 is 724104.

It is a happy number.

It is not a de Polignac number, because 401427 - 2⁴ = 401411 is a prime.

It is a super-2 number, since 2×401427² = 322287272658, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 401427.

It is not an unprimeable number, because it can be changed into a prime (401407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5463 + ... + 5535.

It is an arithmetic number, because the mean of its divisors is an integer number (26936).

2⁴⁰¹⁴²⁷ is an apocalyptic number.

401427 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

401427 is a deficient number, since it is larger than the sum of its proper divisors (245037).

401427 is a wasteful number, since it uses less digits than its factorization.

401427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 401427 is about 633.5826702175. The cubic root of 401427 is about 73.7681445349.

It can be divided in two parts, 401 and 427, that added together give a palindrome (828).

The spelling of 401427 in words is "four hundred one thousand, four hundred twenty-seven", and thus it is an iban number.