120442140 has 480 divisors, whose sum is σ = 500881920. Its totient is φ = 23514624.

The previous prime is 120442111. The next prime is 120442171. The reversal of 120442140 is 41244021.

120442140 is a `hidden beast` number, since 1 + 204 + 421 + 40 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 2800959 + ... + 2801001.

It is an arithmetic number, because the mean of its divisors is an integer number (1043504).

Almost surely, 2^120442140 is an apocalyptic number.

120442140 is a gapful number since it is divisible by the number (10) 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 120442140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250440960).

120442140 is an abundant number, since it is smaller than the sum of its proper divisors (380439780).

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

120442140 is a wasteful number, since it uses less digits than its factorization.

120442140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 120442140 is about 10974.6134328276. The cubic root of 120442140 is about 493.8474562742.

Adding to 120442140 its reverse (41244021), we get a palindrome (161686161).

The spelling of 120442140 in words is "one hundred twenty million, four hundred forty-two thousand, one hundred forty".