120420445 has 8 divisors (see below), whose sum is σ = 144622944. Its totient is φ = 96257424.

The previous prime is 120420437. The next prime is 120420463. The reversal of 120420445 is 544024021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120420445 - 2³ = 120420437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2679 + ... + 15748.

It is an arithmetic number, because the mean of its divisors is an integer number (18077868).

Almost surely, 2^120420445 is an apocalyptic number.

It is an amenable number.

120420445 is a deficient number, since it is larger than the sum of its proper divisors (24202499).

120420445 is a wasteful number, since it uses less digits than its factorization.

120420445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19739.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 120420445 is about 10973.6249708107. The cubic root of 120420445 is about 493.8178025779.

Adding to 120420445 its reverse (544024021), we get a palindrome (664444466).

The spelling of 120420445 in words is "one hundred twenty million, four hundred twenty thousand, four hundred forty-five".