399120730498 has 32 divisors (see below), whose sum is σ = 688499046144. Its totient is φ = 169979304192.

The previous prime is 399120730457. The next prime is 399120730499. The reversal of 399120730498 is 894037021993.

It is not an unprimeable number, because it can be changed into a prime (399120730499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8939286 + ... + 8983822.

It is an arithmetic number, because the mean of its divisors is an integer number (21515595192).

Almost surely, 2^399120730498 is an apocalyptic number.

399120730498 is a deficient number, since it is larger than the sum of its proper divisors (289378315646).

399120730498 is a wasteful number, since it uses less digits than its factorization.

399120730498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48546.

The product of its (nonzero) digits is 2939328, while the sum is 55.

The spelling of 399120730498 in words is "three hundred ninety-nine billion, one hundred twenty million, seven hundred thirty thousand, four hundred ninety-eight".