402144211 has 8 divisors (see below), whose sum is σ = 460022624. Its totient is φ = 344373120.

The previous prime is 402144191. The next prime is 402144227. The reversal of 402144211 is 112441204.

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

It is not a de Polignac number, because 402144211 - 2¹³ = 402136019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402144271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18630 + ... + 33931.

It is an arithmetic number, because the mean of its divisors is an integer number (57502828).

Almost surely, 2^402144211 is an apocalyptic number.

402144211 is a deficient number, since it is larger than the sum of its proper divisors (57878413).

402144211 is a wasteful number, since it uses less digits than its factorization.

402144211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53661.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 402144211 is about 20053.5336287648. The cubic root of 402144211 is about 738.1205110399.

Adding to 402144211 its reverse (112441204), we get a palindrome (514585415).

The spelling of 402144211 in words is "four hundred two million, one hundred forty-four thousand, two hundred eleven".