120340404 has 42 divisors (see below), whose sum is σ = 315756770. Its totient is φ = 40112496.

The previous prime is 120340397. The next prime is 120340421. The reversal of 120340404 is 404043021.

It can be written as a sum of positive squares in only one way, i.e., 65610000 + 54730404 = 8100^2 + 7398^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 17719 + ... + 23550.

Almost surely, 2^120340404 is an apocalyptic number.

It is an amenable number.

120340404 is an abundant number, since it is smaller than the sum of its proper divisors (195416366).

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

120340404 is an equidigital number, since it uses as much as digits as its factorization.

120340404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41291 (or 41274 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 120340404 is about 10969.9773928664. The cubic root of 120340404 is about 493.7083681396.

Adding to 120340404 its reverse (404043021), we get a palindrome (524383425).

The spelling of 120340404 in words is "one hundred twenty million, three hundred forty thousand, four hundred four".