142743744 has 168 divisors, whose sum is σ = 480956112. Its totient is φ = 39905280.

The previous prime is 142743739. The next prime is 142743761. The reversal of 142743744 is 447347241.

It is a happy number.

142743744 is a `hidden beast` number, since 14 + 274 + 374 + 4 = 666.

It is a super-2 number, since 2×142743744² = 40751552902275072, which contains 22 as substring.

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 = 142743699 and 142743708.

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 23 ways as a sum of consecutive naturals, for example, 81502 + ... + 83234.

It is an arithmetic number, because the mean of its divisors is an integer number (2862834).

Almost surely, 2^142743744 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 142743744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240478056).

142743744 is an abundant number, since it is smaller than the sum of its proper divisors (338212368).

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

142743744 is a wasteful number, since it uses less digits than its factorization.

142743744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775 (or 1762 counting only the distinct ones).

The product of its digits is 75264, while the sum is 36.

The square root of 142743744 is about 11947.5413370283. The cubic root of 142743744 is about 522.6196015975.

The spelling of 142743744 in words is "one hundred forty-two million, seven hundred forty-three thousand, seven hundred forty-four".