12120490 has 32 divisors (see below), whose sum is σ = 23405760. Its totient is φ = 4502784.

The previous prime is 12120487. The next prime is 12120491. The reversal of 12120490 is 9402121.

It is not an unprimeable number, because it can be changed into a prime (12120491) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13681 + ... + 14539.

It is an arithmetic number, because the mean of its divisors is an integer number (731430).

Almost surely, 2^12120490 is an apocalyptic number.

12120490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120490 is a deficient number, since it is larger than the sum of its proper divisors (11285270).

12120490 is a wasteful number, since it uses less digits than its factorization.

12120490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 12120490 is about 3481.4494108058. The cubic root of 12120490 is about 229.7065570903.

The spelling of 12120490 in words is "twelve million, one hundred twenty thousand, four hundred ninety".