320049142 has 16 divisors (see below), whose sum is σ = 548900352. Its totient is φ = 137102760.

The previous prime is 320049101. The next prime is 320049143. The reversal of 320049142 is 241940023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320049143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43203 + ... + 50065.

It is an arithmetic number, because the mean of its divisors is an integer number (34306272).

Almost surely, 2^320049142 is an apocalyptic number.

320049142 is a deficient number, since it is larger than the sum of its proper divisors (228851210).

320049142 is a wasteful number, since it uses less digits than its factorization.

320049142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10203.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 320049142 is about 17889.9173279252. The cubic root of 320049142 is about 684.0253900610.

Adding to 320049142 its reverse (241940023), we get a palindrome (561989165).

The spelling of 320049142 in words is "three hundred twenty million, forty-nine thousand, one hundred forty-two".