120304405 has 8 divisors (see below), whose sum is σ = 155470392. Its totient is φ = 88840128.

The previous prime is 120304391. The next prime is 120304423. The reversal of 120304405 is 504403021.

It can be written as a sum of positive squares in 4 ways, for example, as 2125764 + 118178641 = 1458^2 + 10871^2 .

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

It is not a de Polignac number, because 120304405 - 2⁹ = 120303893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 925354 + ... + 925483.

It is an arithmetic number, because the mean of its divisors is an integer number (19433799).

Almost surely, 2^120304405 is an apocalyptic number.

It is an amenable number.

120304405 is a deficient number, since it is larger than the sum of its proper divisors (35165987).

120304405 is a wasteful number, since it uses less digits than its factorization.

120304405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1850855.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 120304405 is about 10968.3364736864. The cubic root of 120304405 is about 493.6591334147.

Adding to 120304405 its reverse (504403021), we get a palindrome (624707426).

The spelling of 120304405 in words is "one hundred twenty million, three hundred four thousand, four hundred five".