402201191 has 8 divisors (see below), whose sum is σ = 459929760. Its totient is φ = 344540448.

The previous prime is 402201169. The next prime is 402201197. The reversal of 402201191 is 191102204.

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

It is not a de Polignac number, because 402201191 - 2²² = 398006887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402201197) 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, 3536 + ... + 28581.

It is an arithmetic number, because the mean of its divisors is an integer number (57491220).

Almost surely, 2^402201191 is an apocalyptic number.

402201191 is a deficient number, since it is larger than the sum of its proper divisors (57728569).

402201191 is a wasteful number, since it uses less digits than its factorization.

402201191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33913.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 402201191 is about 20054.9542756896. The cubic root of 402201191 is about 738.1553709396.

Adding to 402201191 its reverse (191102204), we get a palindrome (593303395).

The spelling of 402201191 in words is "four hundred two million, two hundred one thousand, one hundred ninety-one".