120340438 has 4 divisors (see below), whose sum is σ = 180510660. Its totient is φ = 60170218.

The previous prime is 120340421. The next prime is 120340457. The reversal of 120340438 is 834043021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 834043021 = 7 ⋅119149003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30085108 + ... + 30085111.

It is an arithmetic number, because the mean of its divisors is an integer number (45127665).

Almost surely, 2^120340438 is an apocalyptic number.

120340438 is a deficient number, since it is larger than the sum of its proper divisors (60170222).

120340438 is an equidigital number, since it uses as much as digits as its factorization.

120340438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60170221.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 120340438 is about 10969.9789425504. The cubic root of 120340438 is about 493.7084146358.

Adding to 120340438 its reverse (834043021), we get a palindrome (954383459).

The spelling of 120340438 in words is "one hundred twenty million, three hundred forty thousand, four hundred thirty-eight".