398930144722 has 8 divisors (see below), whose sum is σ = 598410386172. Its totient is φ = 199460016000.

The previous prime is 398930144681. The next prime is 398930144737. The reversal of 398930144722 is 227441039893.

It can be written as a sum of positive squares in 2 ways, for example, as 371038138641 + 27892006081 = 609129^2 + 167009^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 398930144722.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2428779 + ... + 2587822.

Almost surely, 2^398930144722 is an apocalyptic number.

398930144722 is a deficient number, since it is larger than the sum of its proper divisors (199480241450).

398930144722 is a wasteful number, since it uses less digits than its factorization.

398930144722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5056364.

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 398930144722 in words is "three hundred ninety-eight billion, nine hundred thirty million, one hundred forty-four thousand, seven hundred twenty-two".