142244544 has 56 divisors (see below), whose sum is σ = 405312880. Its totient is φ = 43766784.

The previous prime is 142244537. The next prime is 142244549. The reversal of 142244544 is 445442241.

It is not an unprimeable number, because it can be changed into a prime (142244549) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 25999 + ... + 30990.

It is an arithmetic number, because the mean of its divisors is an integer number (7237730).

Almost surely, 2^142244544 is an apocalyptic number.

It is an amenable number.

142244544 is an abundant number, since it is smaller than the sum of its proper divisors (263068336).

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

142244544 is a wasteful number, since it uses less digits than its factorization.

142244544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57017 (or 57007 counting only the distinct ones).

The product of its digits is 20480, while the sum is 30.

The square root of 142244544 is about 11926.6317122648. The cubic root of 142244544 is about 522.0096591040.

Adding to 142244544 its reverse (445442241), we get a palindrome (587686785).

The spelling of 142244544 in words is "one hundred forty-two million, two hundred forty-four thousand, five hundred forty-four".