120642018 has 96 divisors (see below), whose sum is σ = 295516800. Its totient is φ = 32810400.

The previous prime is 120642017. The next prime is 120642023. The reversal of 120642018 is 810246021.

It is a super-2 number, since 2×120642018² = 29108993014224648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120642017) 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, 1977708 + ... + 1977768.

It is an arithmetic number, because the mean of its divisors is an integer number (3078300).

Almost surely, 2^120642018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120642018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147758400).

120642018 is an abundant number, since it is smaller than the sum of its proper divisors (174874782).

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

120642018 is an equidigital number, since it uses as much as digits as its factorization.

120642018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 120642018 is about 10983.7160378444. The cubic root of 120642018 is about 494.1204910784.

Adding to 120642018 its reverse (810246021), we get a palindrome (930888039).

The spelling of 120642018 in words is "one hundred twenty million, six hundred forty-two thousand, eighteen".