398120242022149 has 4 divisors (see below), whose sum is σ = 399706378444800. Its totient is φ = 396534105599500.

The previous prime is 398120242022081. The next prime is 398120242022159. The reversal of 398120242022149 is 941220242021893.

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 a cyclic number.

It is not a de Polignac number, because 398120242022149 - 2⁷ = 398120242022021 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 (398120242022159) 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 3 ways as a sum of consecutive naturals, for example, 793068210949 + ... + 793068211450.

It is an arithmetic number, because the mean of its divisors is an integer number (99926594611200).

Almost surely, 2^{398120242022149} is an apocalyptic number.

It is an amenable number.

398120242022149 is a deficient number, since it is larger than the sum of its proper divisors (1586136422651).

398120242022149 is a wasteful number, since it uses less digits than its factorization.

398120242022149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586136422650.

The product of its (nonzero) digits is 995328, while the sum is 49.

The spelling of 398120242022149 in words is "three hundred ninety-eight trillion, one hundred twenty billion, two hundred forty-two million, twenty-two thousand, one hundred forty-nine".