142617744 has 60 divisors (see below), whose sum is σ = 400981776. Its totient is φ = 47318976.

The previous prime is 142617731. The next prime is 142617751. The reversal of 142617744 is 447716241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 142617699 and 142617708.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30507 + ... + 34869.

Almost surely, 2^142617744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142617744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200490888).

142617744 is an abundant number, since it is smaller than the sum of its proper divisors (258364032).

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

142617744 is a wasteful number, since it uses less digits than its factorization.

142617744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4604 (or 4595 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 142617744 is about 11942.2671214473. The cubic root of 142617744 is about 522.4657841044.

The spelling of 142617744 in words is "one hundred forty-two million, six hundred seventeen thousand, seven hundred forty-four".