120042342 has 96 divisors (see below), whose sum is σ = 320785920. Its totient is φ = 31674240.

The previous prime is 120042311. The next prime is 120042347. The reversal of 120042342 is 243240021.

120042342 is a `hidden beast` number, since 1 + 200 + 423 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120042347) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 97543 + ... + 98765.

It is an arithmetic number, because the mean of its divisors is an integer number (3341520).

Almost surely, 2^120042342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120042342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160392960).

120042342 is an abundant number, since it is smaller than the sum of its proper divisors (200743578).

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

120042342 is a wasteful number, since it uses less digits than its factorization.

120042342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298 (or 1295 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 120042342 is about 10956.3836186946. The cubic root of 120042342 is about 493.3004215728.

Adding to 120042342 its reverse (243240021), we get a palindrome (363282363).

The spelling of 120042342 in words is "one hundred twenty million, forty-two thousand, three hundred forty-two".