120421442 has 8 divisors (see below), whose sum is σ = 183593532. Its totient is φ = 59223600.

The previous prime is 120421439. The next prime is 120421507. The reversal of 120421442 is 244124021.

It can be written as a sum of positive squares in 2 ways, for example, as 98227921 + 22193521 = 9911^2 + 4711^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493409 + ... + 493652.

Almost surely, 2^120421442 is an apocalyptic number.

120421442 is a deficient number, since it is larger than the sum of its proper divisors (63172090).

120421442 is an equidigital number, since it uses as much as digits as its factorization.

120421442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987124.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 120421442 is about 10973.6703978204. The cubic root of 120421442 is about 493.8191654002.

Adding to 120421442 its reverse (244124021), we get a palindrome (364545463).

The spelling of 120421442 in words is "one hundred twenty million, four hundred twenty-one thousand, four hundred forty-two".