120642444 has 36 divisors (see below), whose sum is σ = 328416816. Its totient is φ = 37120608.

The previous prime is 120642443. The next prime is 120642451. The reversal of 120642444 is 444246021.

It is a happy number.

120642444 is a `hidden beast` number, since 12 + 0 + 642 + 4 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (120642443) 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, 128424 + ... + 129359.

Almost surely, 2^120642444 is an apocalyptic number.

It is an amenable number.

120642444 is an abundant number, since it is smaller than the sum of its proper divisors (207774372).

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

120642444 is a wasteful number, since it uses less digits than its factorization.

120642444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257806 (or 257801 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 120642444 is about 10983.7354301713. The cubic root of 120642444 is about 494.1210726753.

Adding to 120642444 its reverse (444246021), we get a palindrome (564888465).

The spelling of 120642444 in words is "one hundred twenty million, six hundred forty-two thousand, four hundred forty-four".