1398057084 has 60 divisors (see below), whose sum is σ = 3869800704. Its totient is φ = 438604416.

The previous prime is 1398057083. The next prime is 1398057121. The reversal of 1398057084 is 4807508931.

It is a super-2 number, since 2×1398057084² = 3909127220245166112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398057083) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 121404 + ... + 132419.

Almost surely, 2^1398057084 is an apocalyptic number.

It is an amenable number.

1398057084 is an abundant number, since it is smaller than the sum of its proper divisors (2471743620).

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

1398057084 is a wasteful number, since it uses less digits than its factorization.

1398057084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253856 (or 253845 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1398057084 is about 37390.6015463779. The cubic root of 1398057084 is about 1118.1711980604.

The spelling of 1398057084 in words is "one billion, three hundred ninety-eight million, fifty-seven thousand, eighty-four".