30000140 has 12 divisors (see below), whose sum is σ = 63000336. Its totient is φ = 12000048.

The previous prime is 30000137. The next prime is 30000149. The reversal of 30000140 is 4100003.

It is not an unprimeable number, because it can be changed into a prime (30000149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 749984 + ... + 750023.

It is an arithmetic number, because the mean of its divisors is an integer number (5250028).

Almost surely, 2^30000140 is an apocalyptic number.

It is an amenable number.

30000140 is an abundant number, since it is smaller than the sum of its proper divisors (33000196).

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

30000140 is a wasteful number, since it uses less digits than its factorization.

30000140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500016 (or 1500014 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 30000140 is about 5477.2383552298. The cubic root of 30000140 is about 310.7237339419.

Adding to 30000140 its reverse (4100003), we get a palindrome (34100143).

The spelling of 30000140 in words is "thirty million, one hundred forty", and thus it is an aban number.