142480644 has 24 divisors (see below), whose sum is σ = 334147968. Its totient is φ = 47251680.

The previous prime is 142480643. The next prime is 142480649. The reversal of 142480644 is 446084241.

It is not an unprimeable number, because it can be changed into a prime (142480643) 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 7 ways as a sum of consecutive naturals, for example, 27772 + ... + 32499.

It is an arithmetic number, because the mean of its divisors is an integer number (13922832).

Almost surely, 2^142480644 is an apocalyptic number.

It is an amenable number.

142480644 is an abundant number, since it is smaller than the sum of its proper divisors (191667324).

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

142480644 is a wasteful number, since it uses less digits than its factorization.

142480644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60475 (or 60473 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

The square root of 142480644 is about 11936.5256251558. The cubic root of 142480644 is about 522.2983130680.

The spelling of 142480644 in words is "one hundred forty-two million, four hundred eighty thousand, six hundred forty-four".