400032201 has 4 divisors (see below), whose sum is σ = 533376272. Its totient is φ = 266688132.

The previous prime is 400032179. The next prime is 400032209. The reversal of 400032201 is 102230004.

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 not a de Polignac number, because 400032201 - 2¹⁵ = 399999433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400032209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66672031 + ... + 66672036.

It is an arithmetic number, because the mean of its divisors is an integer number (133344068).

Almost surely, 2^400032201 is an apocalyptic number.

It is an amenable number.

400032201 is a deficient number, since it is larger than the sum of its proper divisors (133344071).

400032201 is a wasteful number, since it uses less digits than its factorization.

400032201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133344070.

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

The square root of 400032201 is about 20000.8050087990. The cubic root of 400032201 is about 736.8260707806.

Adding to 400032201 its reverse (102230004), we get a palindrome (502262205).

The spelling of 400032201 in words is "four hundred million, thirty-two thousand, two hundred one".