5198385440 has 48 divisors (see below), whose sum is σ = 12286286712. Its totient is φ = 2078490624.

The previous prime is 5198385433. The next prime is 5198385497. The reversal of 5198385440 is 445838915.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5156963344 + 41422096 = 71812^2 + 6436^2 .

It is a super-2 number, since 2×5198385440² = 54046422365607987200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496742 + ... + 507098.

Almost surely, 2^5198385440 is an apocalyptic number.

It is an amenable number.

5198385440 is an abundant number, since it is smaller than the sum of its proper divisors (7087901272).

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

5198385440 is a wasteful number, since it uses less digits than its factorization.

5198385440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13509 (or 13501 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 47.

The square root of 5198385440 is about 72099.8296807974. The cubic root of 5198385440 is about 1732.2988850682.

The spelling of 5198385440 in words is "five billion, one hundred ninety-eight million, three hundred eighty-five thousand, four hundred forty".