120442538 has 8 divisors (see below), whose sum is σ = 180791040. Its totient is φ = 60178860.

The previous prime is 120442537. The next prime is 120442589. The reversal of 120442538 is 835244021.

It is a happy number.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 120442538.

It is not an unprimeable number, because it can be changed into a prime (120442537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17528 + ... + 23411.

It is an arithmetic number, because the mean of its divisors is an integer number (22598880).

Almost surely, 2^120442538 is an apocalyptic number.

120442538 is a deficient number, since it is larger than the sum of its proper divisors (60348502).

120442538 is a wasteful number, since it uses less digits than its factorization.

120442538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42412.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 120442538 is about 10974.6315655698. The cubic root of 120442538 is about 493.8480002452.

Adding to 120442538 its reverse (835244021), we get a palindrome (955686559).

The spelling of 120442538 in words is "one hundred twenty million, four hundred forty-two thousand, five hundred thirty-eight".