142742736 has 100 divisors (see below), whose sum is σ = 418431552. Its totient is φ = 46972224.

The previous prime is 142742729. The next prime is 142742741. The reversal of 142742736 is 637247241.

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

It is a self number, because there is not a number n which added to its sum of digits gives 142742736.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 106905 + ... + 108231.

Almost surely, 2^142742736 is an apocalyptic number.

142742736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142742736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209215776).

142742736 is an abundant number, since it is smaller than the sum of its proper divisors (275688816).

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

142742736 is a wasteful number, since it uses less digits than its factorization.

142742736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430 (or 1415 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 142742736 is about 11947.4991525423. The cubic root of 142742736 is about 522.6183714168.

Adding to 142742736 its reverse (637247241), we get a palindrome (779989977).

The spelling of 142742736 in words is "one hundred forty-two million, seven hundred forty-two thousand, seven hundred thirty-six".