401900 has 18 divisors (see below), whose sum is σ = 872340. Its totient is φ = 160720.

The previous prime is 401887. The next prime is 401903. The reversal of 401900 is 9104.

It is a super-2 number, since 2×401900² = 323047220000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1910 + ... + 2109.

2⁴⁰¹⁹⁰⁰ is an apocalyptic number.

It is an amenable number.

401900 is an abundant number, since it is smaller than the sum of its proper divisors (470440).

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

401900 is a wasteful number, since it uses less digits than its factorization.

401900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4033 (or 4026 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 401900 is about 633.9558344238. The cubic root of 401900 is about 73.7971067429.

The spelling of 401900 in words is "four hundred one thousand, nine hundred".