143240022 has 32 divisors (see below), whose sum is σ = 318872160. Its totient is φ = 47662560.

The previous prime is 143240003. The next prime is 143240033. The reversal of 143240022 is 220042341.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 143239977 and 143240004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33688 + ... + 37700.

It is an arithmetic number, because the mean of its divisors is an integer number (9964755).

Almost surely, 2^143240022 is an apocalyptic number.

143240022 is an abundant number, since it is smaller than the sum of its proper divisors (175632138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143240022 is a wasteful number, since it uses less digits than its factorization.

143240022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4685 (or 4679 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 143240022 is about 11968.2923593970. The cubic root of 143240022 is about 523.2245659074.

Adding to 143240022 its reverse (220042341), we get a palindrome (363282363).

The spelling of 143240022 in words is "one hundred forty-three million, two hundred forty thousand, twenty-two".