320144490 has 48 divisors (see below), whose sum is σ = 876189600. Its totient is φ = 80878176.

The previous prime is 320144483. The next prime is 320144501. The reversal of 320144490 is 94441023.

320144490 is a `hidden beast` number, since 32 + 0 + 144 + 490 = 666.

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, 91900 + ... + 95319.

It is an arithmetic number, because the mean of its divisors is an integer number (18253950).

Almost surely, 2^320144490 is an apocalyptic number.

320144490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

320144490 is an abundant number, since it is smaller than the sum of its proper divisors (556045110).

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

320144490 is a wasteful number, since it uses less digits than its factorization.

320144490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187251 (or 187248 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 320144490 is about 17892.5819824865. The cubic root of 320144490 is about 684.0933108568.

The spelling of 320144490 in words is "three hundred twenty million, one hundred forty-four thousand, four hundred ninety".