400336 has 20 divisors (see below), whose sum is σ = 785664. Its totient is φ = 197600.

The previous prime is 400331. The next prime is 400339. The reversal of 400336 is 633004.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2001 + ... + 2191.

2⁴⁰⁰³³⁶ is an apocalyptic number.

It is an amenable number.

400336 is a deficient number, since it is larger than the sum of its proper divisors (385328).

400336 is a wasteful number, since it uses less digits than its factorization.

400336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 400336 is about 632.7211075980. The cubic root of 400336 is about 73.7012547753.

The spelling of 400336 in words is "four hundred thousand, three hundred thirty-six".