400232001 has 8 divisors (see below), whose sum is σ = 574692160. Its totient is φ = 246296592.

The previous prime is 400231981. The next prime is 400232009. The reversal of 400232001 is 100232004.

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

It is not a de Polignac number, because 400232001 - 2¹⁰ = 400230977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400232009) 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, 5131141 + ... + 5131218.

It is an arithmetic number, because the mean of its divisors is an integer number (71836520).

Almost surely, 2^400232001 is an apocalyptic number.

It is an amenable number.

400232001 is a deficient number, since it is larger than the sum of its proper divisors (174460159).

400232001 is a wasteful number, since it uses less digits than its factorization.

400232001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10262375.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 400232001 is about 20005.7991842366. The cubic root of 400232001 is about 736.9487220285.

Adding to 400232001 its reverse (100232004), we get a palindrome (500464005).

It can be divided in two parts, 40023 and 2001, that added together give a palindrome (42024).

The spelling of 400232001 in words is "four hundred million, two hundred thirty-two thousand, one".