400533 has 8 divisors (see below), whose sum is σ = 610368. Its totient is φ = 228864.

The previous prime is 400523. The next prime is 400559. The reversal of 400533 is 335004.

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

It is not a de Polignac number, because 400533 - 2⁸ = 400277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9516 + ... + 9557.

It is an arithmetic number, because the mean of its divisors is an integer number (76296).

2⁴⁰⁰⁵³³ is an apocalyptic number.

It is an amenable number.

400533 is a deficient number, since it is larger than the sum of its proper divisors (209835).

400533 is a wasteful number, since it uses less digits than its factorization.

400533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19083.

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 400533 is about 632.8767652553. The cubic root of 400533 is about 73.7133419274.

Adding to 400533 its reverse (335004), we get a palindrome (735537).

The spelling of 400533 in words is "four hundred thousand, five hundred thirty-three".