401836 has 6 divisors (see below), whose sum is σ = 703220. Its totient is φ = 200916.

The previous prime is 401827. The next prime is 401839. The reversal of 401836 is 638104.

It is a super-2 number, since 2×401836² = 322944341792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401839) by changing a digit.

401836 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 as a sum of consecutive naturals, namely, 50226 + ... + 50233.

2⁴⁰¹⁸³⁶ is an apocalyptic number.

It is an amenable number.

401836 is a deficient number, since it is larger than the sum of its proper divisors (301384).

401836 is a wasteful number, since it uses less digits than its factorization.

401836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100463 (or 100461 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 401836 is about 633.9053557117. The cubic root of 401836 is about 73.7931892962.

The spelling of 401836 in words is "four hundred one thousand, eight hundred thirty-six".