1005005598 has 16 divisors (see below), whose sum is σ = 2011650960. Its totient is φ = 334728576.

The previous prime is 1005005591. The next prime is 1005005611. The reversal of 1005005598 is 8955005001.

It is a super-2 number, since 2×1005005598² = 2020072504022675208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005005591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60283 + ... + 75126.

It is an arithmetic number, because the mean of its divisors is an integer number (125728185).

Almost surely, 2^1005005598 is an apocalyptic number.

1005005598 is an abundant number, since it is smaller than the sum of its proper divisors (1006645362).

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

1005005598 is a wasteful number, since it uses less digits than its factorization.

1005005598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136651.

The product of its (nonzero) digits is 9000, while the sum is 33.

The square root of 1005005598 is about 31701.8232598695. The cubic root of 1005005598 is about 1001.6657563817.

The spelling of 1005005598 in words is "one billion, five million, five thousand, five hundred ninety-eight".