398430197907141 has 4 divisors (see below), whose sum is σ = 531240263876192. Its totient is φ = 265620131938092.

The previous prime is 398430197906981. The next prime is 398430197907149. The reversal of 398430197907141 is 141709791034893.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 398430197907141 - 2¹⁷ = 398430197776069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398430197907149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66405032984521 + ... + 66405032984526.

It is an arithmetic number, because the mean of its divisors is an integer number (132810065969048).

Almost surely, 2^{398430197907141} is an apocalyptic number.

It is an amenable number.

398430197907141 is a deficient number, since it is larger than the sum of its proper divisors (132810065969051).

398430197907141 is a wasteful number, since it uses less digits than its factorization.

398430197907141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132810065969050.

The product of its (nonzero) digits is 41150592, while the sum is 66.

The spelling of 398430197907141 in words is "three hundred ninety-eight trillion, four hundred thirty billion, one hundred ninety-seven million, nine hundred seven thousand, one hundred forty-one".