139793320 has 32 divisors (see below), whose sum is σ = 318971520. Its totient is φ = 55128640.

The previous prime is 139793309. The next prime is 139793323. The reversal of 139793320 is 23397931.

It is a self number, because there is not a number n which added to its sum of digits gives 139793320.

It is not an unprimeable number, because it can be changed into a prime (139793323) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 21772 + ... + 27451.

It is an arithmetic number, because the mean of its divisors is an integer number (9967860).

Almost surely, 2^139793320 is an apocalyptic number.

139793320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139793320 is an abundant number, since it is smaller than the sum of its proper divisors (179178200).

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

139793320 is a wasteful number, since it uses less digits than its factorization.

139793320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49305 (or 49301 counting only the distinct ones).

The product of its (nonzero) digits is 30618, while the sum is 37.

The square root of 139793320 is about 11823.4225163444. The cubic root of 139793320 is about 518.9937641795.

The spelling of 139793320 in words is "one hundred thirty-nine million, seven hundred ninety-three thousand, three hundred twenty".