120390930 has 48 divisors (see below), whose sum is σ = 341475264. Its totient is φ = 29185440.

The previous prime is 120390911. The next prime is 120390967. The reversal of 120390930 is 39093021.

It is a junction number, because it is equal to n+sod(n) for n = 120390894 and 120390903.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59814 + ... + 61793.

It is an arithmetic number, because the mean of its divisors is an integer number (7114068).

Almost surely, 2^120390930 is an apocalyptic number.

120390930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120390930 is an abundant number, since it is smaller than the sum of its proper divisors (221084334).

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

120390930 is a wasteful number, since it uses less digits than its factorization.

120390930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121631 (or 121628 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 120390930 is about 10972.2800729839. The cubic root of 120390930 is about 493.7774544367. Note that the first 3 decimals are identical.

The spelling of 120390930 in words is "one hundred twenty million, three hundred ninety thousand, nine hundred thirty".