401336 has 32 divisors (see below), whose sum is σ = 861840. Its totient is φ = 173568.

The previous prime is 401329. The next prime is 401341. The reversal of 401336 is 633104.

It is a super-2 number, since 2×401336² = 322141169792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1655 + ... + 1881.

2⁴⁰¹³³⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (430920).

401336 is an abundant number, since it is smaller than the sum of its proper divisors (460504).

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

401336 is a wasteful number, since it uses less digits than its factorization.

401336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 401336 is about 633.5108523143. The cubic root of 401336 is about 73.7625699153.

It can be divided in two parts, 401 and 336, that added together give a palindrome (737).

The spelling of 401336 in words is "four hundred one thousand, three hundred thirty-six".