120816642 has 16 divisors (see below), whose sum is σ = 242073792. Its totient is φ = 40198800.

The previous prime is 120816629. The next prime is 120816643. The reversal of 120816642 is 246618021.

It is not an unprimeable number, because it can be changed into a prime (120816643) 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, 14734 + ... + 21417.

It is an arithmetic number, because the mean of its divisors is an integer number (15129612).

Almost surely, 2^120816642 is an apocalyptic number.

120816642 is an abundant number, since it is smaller than the sum of its proper divisors (121257150).

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

120816642 is a wasteful number, since it uses less digits than its factorization.

120816642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36713.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 120816642 is about 10991.6623856449. The cubic root of 120816642 is about 494.3587820158.

The spelling of 120816642 in words is "one hundred twenty million, eight hundred sixteen thousand, six hundred forty-two".