1398857349228 has 48 divisors (see below), whose sum is σ = 3508891921920. Its totient is φ = 432345605184.

The previous prime is 1398857349167. The next prime is 1398857349229. The reversal of 1398857349228 is 8229437588931.

It is a super-4 number, since 4×1398857349228⁴ (a number of 50 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (1398857349229) 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, 65258851 + ... + 65280282.

It is an arithmetic number, because the mean of its divisors is an integer number (73101915040).

Almost surely, 2^{1398857349228} is an apocalyptic number.

It is an amenable number.

1398857349228 is an abundant number, since it is smaller than the sum of its proper divisors (2110034572692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1398857349228 is a wasteful number, since it uses less digits than its factorization.

1398857349228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130539206 (or 130539204 counting only the distinct ones).

The product of its digits is 209018880, while the sum is 69.

The spelling of 1398857349228 in words is "one trillion, three hundred ninety-eight billion, eight hundred fifty-seven million, three hundred forty-nine thousand, two hundred twenty-eight".