120390 has 16 divisors (see below), whose sum is σ = 289008. Its totient is φ = 32096.

The previous prime is 120383. The next prime is 120391. The reversal of 120390 is 93021.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1977 + ... + 2036.

It is an arithmetic number, because the mean of its divisors is an integer number (18063).

2¹²⁰³⁹⁰ is an apocalyptic number.

120390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120390 is an abundant number, since it is smaller than the sum of its proper divisors (168618).

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

120390 is a wasteful number, since it uses less digits than its factorization.

120390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4023.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 120390 is about 346.9726213983. The cubic root of 120390 is about 49.3776182984.

The spelling of 120390 in words is "one hundred twenty thousand, three hundred ninety".