120042736 has 40 divisors (see below), whose sum is σ = 255126528. Its totient is φ = 54264000.

The previous prime is 120042731. The next prime is 120042743. The reversal of 120042736 is 637240021.

It is a self number, because there is not a number n which added to its sum of digits gives 120042736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120042731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31831 + ... + 35401.

Almost surely, 2^120042736 is an apocalyptic number.

120042736 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 120042736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127563264).

120042736 is an abundant number, since it is smaller than the sum of its proper divisors (135083792).

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

120042736 is a wasteful number, since it uses less digits than its factorization.

120042736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3781 (or 3775 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 120042736 is about 10956.4015990653. The cubic root of 120042736 is about 493.3009612717.

Adding to 120042736 its reverse (637240021), we get a palindrome (757282757).

The spelling of 120042736 in words is "one hundred twenty million, forty-two thousand, seven hundred thirty-six".