390345120 has 288 divisors, whose sum is σ = 1530809280. Its totient is φ = 89579520.

The previous prime is 390345113. The next prime is 390345157. The reversal of 390345120 is 21543093.

It is a tau number, because it is divible by the number of its divisors (288).

It is a nialpdrome in base 12.

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 47 ways as a sum of consecutive naturals, for example, 300312 + ... + 301608.

It is an arithmetic number, because the mean of its divisors is an integer number (5315310).

Almost surely, 2^390345120 is an apocalyptic number.

390345120 is a gapful number since it is divisible by the number (30) 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 390345120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (765404640).

390345120 is an abundant number, since it is smaller than the sum of its proper divisors (1140464160).

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

390345120 is a wasteful number, since it uses less digits than its factorization.

390345120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348 (or 1337 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 390345120 is about 19757.1536411498. The cubic root of 390345120 is about 730.8298063686.

The spelling of 390345120 in words is "three hundred ninety million, three hundred forty-five thousand, one hundred twenty".