30071000 has 32 divisors (see below), whose sum is σ = 70368480. Its totient is φ = 12028000.

The previous prime is 30070993. The next prime is 30071003. The reversal of 30071000 is 17003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30071003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14036 + ... + 16035.

It is an arithmetic number, because the mean of its divisors is an integer number (2199015).

Almost surely, 2^30071000 is an apocalyptic number.

It is an amenable number.

30071000 is an abundant number, since it is smaller than the sum of its proper divisors (40297480).

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

30071000 is a wasteful number, since it uses less digits than its factorization.

30071000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30092 (or 30078 counting only the distinct ones).

The product of its (nonzero) digits is 21, while the sum is 11.

The square root of 30071000 is about 5483.7031283613. The cubic root of 30071000 is about 310.9681835919.

Adding to 30071000 its reverse (17003), we get a palindrome (30088003).

The spelling of 30071000 in words is "thirty million, seventy-one thousand".