400486 has 8 divisors (see below), whose sum is σ = 636120. Its totient is φ = 188448.

The previous prime is 400481. The next prime is 400523. The reversal of 400486 is 684004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400481) 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, 5856 + ... + 5923.

It is an arithmetic number, because the mean of its divisors is an integer number (79515).

2⁴⁰⁰⁴⁸⁶ is an apocalyptic number.

400486 is a deficient number, since it is larger than the sum of its proper divisors (235634).

400486 is a wasteful number, since it uses less digits than its factorization.

400486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11798.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 400486 is about 632.8396321344. The cubic root of 400486 is about 73.7104585506.

The spelling of 400486 in words is "four hundred thousand, four hundred eighty-six".