401080 has 32 divisors (see below), whose sum is σ = 930240. Its totient is φ = 155520.
The previous prime is 401077. The next prime is 401087. The reversal of 401080 is 80104.
It is an Ulam number.
It is a self number, because there is not a number n which added to its sum of digits gives 401080.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (401087) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1345 + ... + 1615.
It is an arithmetic number, because the mean of its divisors is an integer number (29070).
2401080 is an apocalyptic number.
401080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 401080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (465120).
401080 is an abundant number, since it is smaller than the sum of its proper divisors (529160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
401080 is a wasteful number, since it uses less digits than its factorization.
401080 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 319 (or 315 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 13.
The square root of 401080 is about 633.3087714535. The cubic root of 401080 is about 73.7468829478.
Adding to 401080 its reverse (80104), we get a palindrome (481184).
The spelling of 401080 in words is "four hundred one thousand, eighty".
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