400134201 has 16 divisors (see below), whose sum is σ = 539572224. Its totient is φ = 263741184.

The previous prime is 400134191. The next prime is 400134209. The reversal of 400134201 is 102431004.

It is not a de Polignac number, because 400134201 - 2¹⁵ = 400101433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400134209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119121 + ... + 122433.

It is an arithmetic number, because the mean of its divisors is an integer number (33723264).

Almost surely, 2^400134201 is an apocalyptic number.

It is an amenable number.

400134201 is a deficient number, since it is larger than the sum of its proper divisors (139438023).

400134201 is a wasteful number, since it uses less digits than its factorization.

400134201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3760.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 400134201 is about 20003.3547436424. The cubic root of 400134201 is about 736.8886906332. Note that the first 3 decimals are identical.

Adding to 400134201 its reverse (102431004), we get a palindrome (502565205).

The spelling of 400134201 in words is "four hundred million, one hundred thirty-four thousand, two hundred one".