1098838164 has 12 divisors (see below), whose sum is σ = 2563955744. Its totient is φ = 366279384.

The previous prime is 1098838157. The next prime is 1098838187. The reversal of 1098838164 is 4618388901.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45784912 + ... + 45784935.

Almost surely, 2^1098838164 is an apocalyptic number.

It is an amenable number.

1098838164 is an abundant number, since it is smaller than the sum of its proper divisors (1465117580).

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

1098838164 is a wasteful number, since it uses less digits than its factorization.

1098838164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91569854 (or 91569852 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 48.

The square root of 1098838164 is about 33148.7279393946. The cubic root of 1098838164 is about 1031.9165510013.

The spelling of 1098838164 in words is "one billion, ninety-eight million, eight hundred thirty-eight thousand, one hundred sixty-four".