1000009912 has 16 divisors (see below), whose sum is σ = 2045475000. Its totient is φ = 454549920.

The previous prime is 1000009867. The next prime is 1000009961. The reversal of 1000009912 is 2199000001.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5681787 + ... + 5681962.

Almost surely, 2^1000009912 is an apocalyptic number.

It is an amenable number.

1000009912 is an abundant number, since it is smaller than the sum of its proper divisors (1045465088).

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

1000009912 is a wasteful number, since it uses less digits than its factorization.

1000009912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11363766 (or 11363762 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 1000009912 is about 31622.9333237763. The cubic root of 1000009912 is about 1000.0033039891.

Adding to 1000009912 its reverse (2199000001), we get a palindrome (3199009913).

The spelling of 1000009912 in words is "one billion, nine thousand, nine hundred twelve".