400433 has 8 divisors (see below), whose sum is σ = 444960. Its totient is φ = 357280.

The previous prime is 400429. The next prime is 400441. The reversal of 400433 is 334004.

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

It is not a de Polignac number, because 400433 - 2² = 400429 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400033) 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, 341 + ... + 957.

It is an arithmetic number, because the mean of its divisors is an integer number (55620).

2⁴⁰⁰⁴³³ is an apocalyptic number.

It is an amenable number.

400433 is a deficient number, since it is larger than the sum of its proper divisors (44527).

400433 is a wasteful number, since it uses less digits than its factorization.

400433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 400433 is about 632.7977560011. The cubic root of 400433 is about 73.7072068126.

Adding to 400433 its reverse (334004), we get a palindrome (734437).

The spelling of 400433 in words is "four hundred thousand, four hundred thirty-three".