1000000072 has 32 divisors (see below), whose sum is σ = 1958806080. Its totient is φ = 477702720.

The previous prime is 1000000033. The next prime is 1000000087. The reversal of 1000000072 is 2700000001.

1000000072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 999999995 and 1000000058.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185203 + ... + 190525.

It is an arithmetic number, because the mean of its divisors is an integer number (61212690).

Almost surely, 2^1000000072 is an apocalyptic number.

It is an amenable number.

1000000072 is a deficient number, since it is larger than the sum of its proper divisors (958806008).

1000000072 is a wasteful number, since it uses less digits than its factorization.

1000000072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6373 (or 6369 counting only the distinct ones).

The product of its (nonzero) digits is 14, while the sum is 10.

The square root of 1000000072 is about 31622.7777401037. Note that the first 4 decimals coincide. The cubic root of 1000000072 is about 1000.0000240000. Note that the first 4 decimals are identical.

Adding to 1000000072 its reverse (2700000001), we get a palindrome (3700000073).

The spelling of 1000000072 in words is "one billion, seventy-two", and thus it is an aban number and an uban number.