143090442 has 32 divisors (see below), whose sum is σ = 346887360. Its totient is φ = 43360560.

The previous prime is 143090417. The next prime is 143090447. The reversal of 143090442 is 244090341.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (143090447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119853 + ... + 121040.

It is an arithmetic number, because the mean of its divisors is an integer number (10840230).

Almost surely, 2^143090442 is an apocalyptic number.

143090442 is an abundant number, since it is smaller than the sum of its proper divisors (203796918).

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

143090442 is a wasteful number, since it uses less digits than its factorization.

143090442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240915 (or 240909 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 143090442 is about 11962.0417153595. The cubic root of 143090442 is about 523.0423747666.

The spelling of 143090442 in words is "one hundred forty-three million, ninety thousand, four hundred forty-two".