120642417 has 12 divisors (see below), whose sum is σ = 199155840. Its totient is φ = 68938488.

The previous prime is 120642413. The next prime is 120642439. The reversal of 120642417 is 714246021.

120642417 is a `hidden beast` number, since 1 + 2 + 0 + 642 + 4 + 17 = 666.

It is not a de Polignac number, because 120642417 - 2² = 120642413 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120642413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 957417 + ... + 957542.

It is an arithmetic number, because the mean of its divisors is an integer number (16596320).

Almost surely, 2^120642417 is an apocalyptic number.

It is an amenable number.

120642417 is a deficient number, since it is larger than the sum of its proper divisors (78513423).

120642417 is a wasteful number, since it uses less digits than its factorization.

120642417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914972 (or 1914969 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 120642417 is about 10983.7342010812. The cubic root of 120642417 is about 494.1210358136.

Adding to 120642417 its reverse (714246021), we get a palindrome (834888438).

The spelling of 120642417 in words is "one hundred twenty million, six hundred forty-two thousand, four hundred seventeen".