143340442 has 32 divisors (see below), whose sum is σ = 254032128. Its totient is φ = 59377536.

The previous prime is 143340437. The next prime is 143340467. The reversal of 143340442 is 244043341.

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, 85678 + ... + 87334.

It is an arithmetic number, because the mean of its divisors is an integer number (7938504).

Almost surely, 2^143340442 is an apocalyptic number.

143340442 is a deficient number, since it is larger than the sum of its proper divisors (110691686).

143340442 is a wasteful number, since it uses less digits than its factorization.

143340442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 143340442 is about 11972.4868761674. The cubic root of 143340442 is about 523.3468081330.

Adding to 143340442 its reverse (244043341), we get a palindrome (387383783).

The spelling of 143340442 in words is "one hundred forty-three million, three hundred forty thousand, four hundred forty-two".