400036201 has 2 divisors, whose sum is σ = 400036202. Its totient is φ = 400036200.

The previous prime is 400036199. The next prime is 400036253. The reversal of 400036201 is 102630004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 397962601 + 2073600 = 19949^2 + 1440^2 .

It is a cyclic number.

It is not a de Polignac number, because 400036201 - 2¹ = 400036199 is a prime.

It is a super-2 number, since 2×400036201² = 320057924221024802, which contains 22 as substring.

Together with 400036199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (400036261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200018100 + 200018101.

It is an arithmetic number, because the mean of its divisors is an integer number (200018101).

Almost surely, 2^400036201 is an apocalyptic number.

It is an amenable number.

400036201 is a deficient number, since it is larger than the sum of its proper divisors (1).

400036201 is an equidigital number, since it uses as much as digits as its factorization.

400036201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 400036201 is about 20000.9050045242. The cubic root of 400036201 is about 736.8285266616.

Adding to 400036201 its reverse (102630004), we get a palindrome (502666205).

The spelling of 400036201 in words is "four hundred million, thirty-six thousand, two hundred one".