398078748430 has 16 divisors (see below), whose sum is σ = 781681906224. Its totient is φ = 144755908480.

The previous prime is 398078748427. The next prime is 398078748437. The reversal of 398078748430 is 34847870893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398078748437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1809448747 + ... + 1809448966.

It is an arithmetic number, because the mean of its divisors is an integer number (48855119139).

Almost surely, 2^398078748430 is an apocalyptic number.

398078748430 is a deficient number, since it is larger than the sum of its proper divisors (383603157794).

398078748430 is a wasteful number, since it uses less digits than its factorization.

398078748430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3618897731.

The product of its (nonzero) digits is 32514048, while the sum is 61.

The spelling of 398078748430 in words is "three hundred ninety-eight billion, seventy-eight million, seven hundred forty-eight thousand, four hundred thirty".