120217449 has 16 divisors (see below), whose sum is σ = 176972544. Its totient is φ = 71979600.

The previous prime is 120217439. The next prime is 120217451. The reversal of 120217449 is 944712021.

It is not a de Polignac number, because 120217449 - 2⁸ = 120217193 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120217439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19207 + ... + 24684.

It is an arithmetic number, because the mean of its divisors is an integer number (11060784).

Almost surely, 2^120217449 is an apocalyptic number.

It is an amenable number.

120217449 is a deficient number, since it is larger than the sum of its proper divisors (56755095).

120217449 is a wasteful number, since it uses less digits than its factorization.

120217449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43988.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 120217449 is about 10964.3718014303. The cubic root of 120217449 is about 493.5401658391.

The spelling of 120217449 in words is "one hundred twenty million, two hundred seventeen thousand, four hundred forty-nine".