400233001 has 4 divisors (see below), whose sum is σ = 457409152. Its totient is φ = 343056852.

The previous prime is 400232999. The next prime is 400233037. The reversal of 400233001 is 100332004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 400233001 - 2¹ = 400232999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400233061) 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, 28588065 + ... + 28588078.

It is an arithmetic number, because the mean of its divisors is an integer number (114352288).

Almost surely, 2^400233001 is an apocalyptic number.

It is an amenable number.

400233001 is a deficient number, since it is larger than the sum of its proper divisors (57176151).

400233001 is an equidigital number, since it uses as much as digits as its factorization.

400233001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57176150.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 400233001 is about 20005.8241769741. The cubic root of 400233001 is about 736.9493357959.

Adding to 400233001 its reverse (100332004), we get a palindrome (500565005).

The spelling of 400233001 in words is "four hundred million, two hundred thirty-three thousand, one".