1000030000 has 50 divisors (see below), whose sum is σ = 2421196844. Its totient is φ = 400008000.

The previous prime is 1000029971. The next prime is 1000030001. The reversal of 1000030000 is 300001.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (50).

It is a Harshad number since it is a multiple of its sum of digits (4).

1000030000 is a modest number, since divided by 30000 gives 10000 as remainder.

It is not an unprimeable number, because it can be changed into a prime (1000030001) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 40002 + ... + 60001.

Almost surely, 2^1000030000 is an apocalyptic number.

1000030000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000030000 is an abundant number, since it is smaller than the sum of its proper divisors (1421166844).

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

1000030000 is an equidigital number, since it uses as much as digits as its factorization.

1000030000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100031 (or 100010 counting only the distinct ones).

The product of its (nonzero) digits is 3, while the sum is 4.

The square root of 1000030000 is about 31623.2509397753. The cubic root of 1000030000 is about 1000.0099999000.

Adding to 1000030000 its reverse (300001), we get a palindrome (1000330001).

It can be divided in two parts, 10000 and 30000, that added together give a square (40000 = 200²).

The spelling of 1000030000 in words is "one billion, thirty thousand".