142006744 has 16 divisors (see below), whose sum is σ = 290468520. Its totient is φ = 64548480.

The previous prime is 142006723. The next prime is 142006747. The reversal of 142006744 is 447600241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142006747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 806769 + ... + 806944.

Almost surely, 2^142006744 is an apocalyptic number.

It is an amenable number.

142006744 is an abundant number, since it is smaller than the sum of its proper divisors (148461776).

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

142006744 is a wasteful number, since it uses less digits than its factorization.

142006744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613730 (or 1613726 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 142006744 is about 11916.6582564073. The cubic root of 142006744 is about 521.7186036860.

Adding to 142006744 its reverse (447600241), we get a palindrome (589606985).

The spelling of 142006744 in words is "one hundred forty-two million, six thousand, seven hundred forty-four".