401340 has 24 divisors (see below), whose sum is σ = 1123920. Its totient is φ = 107008.

The previous prime is 401329. The next prime is 401341. The reversal of 401340 is 43104.

401340 = 80² + 81² + ... + 119².

It is a super-2 number, since 2×401340² = 322147591200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401341) by changing a digit.

401340 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 7 ways as a sum of consecutive naturals, for example, 3285 + ... + 3404.

It is an arithmetic number, because the mean of its divisors is an integer number (46830).

2⁴⁰¹³⁴⁰ is an apocalyptic number.

It is an amenable number.

401340 is an abundant number, since it is smaller than the sum of its proper divisors (722580).

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

401340 is a wasteful number, since it uses less digits than its factorization.

401340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6701 (or 6699 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 401340 is about 633.5140093163. The cubic root of 401340 is about 73.7628149712.

Adding to 401340 its reverse (43104), we get a palindrome (444444).

It can be divided in two parts, 401 and 340, that added together give a triangular number (741 = T₃₈).

The spelling of 401340 in words is "four hundred one thousand, three hundred forty", and thus it is an iban number.