1020099968 has 32 divisors (see below), whose sum is σ = 2139195000. Its totient is φ = 483204096.

The previous prime is 1020099959. The next prime is 1020100001. The reversal of 1020099968 is 8699900201.

It is a tau number, because it is divible by the number of its divisors (32).

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, 207293 + ... + 212156.

Almost surely, 2^1020099968 is an apocalyptic number.

It is an amenable number.

1020099968 is an abundant number, since it is smaller than the sum of its proper divisors (1119095032).

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

1020099968 is an equidigital number, since it uses as much as digits as its factorization.

1020099968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419482 (or 419470 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 1020099968 is about 31939.0038667458. The cubic root of 1020099968 is about 1006.6555941260.

The spelling of 1020099968 in words is "one billion, twenty million, ninety-nine thousand, nine hundred sixty-eight".