400232201 has 4 divisors (see below), whose sum is σ = 409994004. Its totient is φ = 390470400.

The previous prime is 400232179. The next prime is 400232221. The reversal of 400232201 is 102232004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 163226176 + 237006025 = 12776^2 + 15395^2 .

It is a cyclic number.

It is not a de Polignac number, because 400232201 - 2⁶ = 400232137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400232221) 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, 4880840 + ... + 4880921.

It is an arithmetic number, because the mean of its divisors is an integer number (102498501).

Almost surely, 2^400232201 is an apocalyptic number.

400232201 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

400232201 is a deficient number, since it is larger than the sum of its proper divisors (9761803).

400232201 is an equidigital number, since it uses as much as digits as its factorization.

400232201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9761802.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 400232201 is about 20005.8041827866. The cubic root of 400232201 is about 736.9488447821.

Adding to 400232201 its reverse (102232004), we get a palindrome (502464205).

It can be divided in two parts, 40023 and 2201, that added together give a palindrome (42224).

The spelling of 400232201 in words is "four hundred million, two hundred thirty-two thousand, two hundred one".