30440120 has 16 divisors (see below), whose sum is σ = 68490360. Its totient is φ = 12176032.

The previous prime is 30440119. The next prime is 30440141. The reversal of 30440120 is 2104403.

It is a super-2 number, since 2×30440120² = 1853201811228800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30440095 and 30440104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380462 + ... + 380541.

Almost surely, 2^30440120 is an apocalyptic number.

It is an amenable number.

30440120 is an abundant number, since it is smaller than the sum of its proper divisors (38050240).

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

30440120 is a wasteful number, since it uses less digits than its factorization.

30440120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761014 (or 761010 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 30440120 is about 5517.2565646343. The cubic root of 30440120 is about 312.2353855967.

Adding to 30440120 its reverse (2104403), we get a palindrome (32544523).

The spelling of 30440120 in words is "thirty million, four hundred forty thousand, one hundred twenty".