401810 has 16 divisors (see below), whose sum is σ = 755136. Its totient is φ = 153648.

The previous prime is 401809. The next prime is 401813. The reversal of 401810 is 18104.

It is a happy number.

It is a super-2 number, since 2×401810² = 322902552200, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 401810.

It is not an unprimeable number, because it can be changed into a prime (401813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644 + ... + 1103.

It is an arithmetic number, because the mean of its divisors is an integer number (47196).

2⁴⁰¹⁸¹⁰ is an apocalyptic number.

401810 is a deficient number, since it is larger than the sum of its proper divisors (353326).

401810 is a wasteful number, since it uses less digits than its factorization.

401810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 401810 is about 633.8848475867. The cubic root of 401810 is about 73.7915977146.

Adding to 401810 its reverse (18104), we get a palindrome (419914).

The spelling of 401810 in words is "four hundred one thousand, eight hundred ten".