1009199968 has 48 divisors (see below), whose sum is σ = 2404279584. Its totient is φ = 407070720.

The previous prime is 1009199963. The next prime is 1009200001. The reversal of 1009199968 is 8699919001.

It is a super-2 number, since 2×1009199968² = 2036969150822402048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009199963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128703 + ... + 136318.

It is an arithmetic number, because the mean of its divisors is an integer number (50089158).

Almost surely, 2^1009199968 is an apocalyptic number.

It is an amenable number.

1009199968 is an abundant number, since it is smaller than the sum of its proper divisors (1395079616).

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

1009199968 is a wasteful number, since it uses less digits than its factorization.

1009199968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265055 (or 265047 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 52.

The square root of 1009199968 is about 31767.9078316467. The cubic root of 1009199968 is about 1003.0572993948.

The spelling of 1009199968 in words is "one billion, nine million, one hundred ninety-nine thousand, nine hundred sixty-eight".