402244222143 has 4 divisors (see below), whose sum is σ = 536325629528. Its totient is φ = 268162814760.

The previous prime is 402244222123. The next prime is 402244222157. The reversal of 402244222143 is 341222442204.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 402244222143 - 2⁸ = 402244221887 is a prime.

It is a super-3 number, since 3×402244222143³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 402244222143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402244222123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67040703688 + ... + 67040703693.

It is an arithmetic number, because the mean of its divisors is an integer number (134081407382).

Almost surely, 2^402244222143 is an apocalyptic number.

402244222143 is a deficient number, since it is larger than the sum of its proper divisors (134081407385).

402244222143 is a wasteful number, since it uses less digits than its factorization.

402244222143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134081407384.

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 402244222143 its reverse (341222442204), we get a palindrome (743466664347).

The spelling of 402244222143 in words is "four hundred two billion, two hundred forty-four million, two hundred twenty-two thousand, one hundred forty-three".