120403140 has 96 divisors (see below), whose sum is σ = 396095616. Its totient is φ = 26941440.

The previous prime is 120403117. The next prime is 120403147. The reversal of 120403140 is 41304021.

It is a super-2 number, since 2×120403140² = 28993832243719200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (120403147) 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 31 ways as a sum of consecutive naturals, for example, 1564 + ... + 15596.

It is an arithmetic number, because the mean of its divisors is an integer number (4125996).

Almost surely, 2^120403140 is an apocalyptic number.

120403140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120403140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198047808).

120403140 is an abundant number, since it is smaller than the sum of its proper divisors (275692476).

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

120403140 is a wasteful number, since it uses less digits than its factorization.

120403140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14069 (or 14067 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 120403140 is about 10972.8364610068. The cubic root of 120403140 is about 493.7941467764.

Adding to 120403140 its reverse (41304021), we get a palindrome (161707161).

The spelling of 120403140 in words is "one hundred twenty million, four hundred three thousand, one hundred forty".