5398998408 has 128 divisors (see below), whose sum is σ = 15559488000. Its totient is φ = 1733322240.

The previous prime is 5398998391. The next prime is 5398998421. The reversal of 5398998408 is 8048998935.

5398998408 is a `hidden beast` number, since 53 + 98 + 9 + 98 + 408 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 695766 + ... + 703482.

It is an arithmetic number, because the mean of its divisors is an integer number (121558500).

Almost surely, 2^5398998408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5398998408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7779744000).

5398998408 is an abundant number, since it is smaller than the sum of its proper divisors (10160489592).

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

5398998408 is a wasteful number, since it uses less digits than its factorization.

5398998408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7852 (or 7842 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 63.

The square root of 5398998408 is about 73477.8769970935. The cubic root of 5398998408 is about 1754.3021668587.

The spelling of 5398998408 in words is "five billion, three hundred ninety-eight million, nine hundred ninety-eight thousand, four hundred eight".