1398049828 has 24 divisors (see below), whose sum is σ = 2797200000. Its totient is φ = 598928448.

The previous prime is 1398049817. The next prime is 1398049831. The reversal of 1398049828 is 8289408931.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75648 + ... + 92296.

It is an arithmetic number, because the mean of its divisors is an integer number (116550000).

Almost surely, 2^1398049828 is an apocalyptic number.

It is an amenable number.

1398049828 is an abundant number, since it is smaller than the sum of its proper divisors (1399150172).

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

1398049828 is a wasteful number, since it uses less digits than its factorization.

1398049828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19659 (or 19657 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 52.

The square root of 1398049828 is about 37390.5045165213. The cubic root of 1398049828 is about 1118.1692635986.

The spelling of 1398049828 in words is "one billion, three hundred ninety-eight million, forty-nine thousand, eight hundred twenty-eight".