30140530 has 16 divisors (see below), whose sum is σ = 62003520. Its totient is φ = 10333872.

The previous prime is 30140503. The next prime is 30140543. The reversal of 30140530 is 3504103.

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, 215220 + ... + 215359.

It is an arithmetic number, because the mean of its divisors is an integer number (3875220).

Almost surely, 2^30140530 is an apocalyptic number.

30140530 is an abundant number, since it is smaller than the sum of its proper divisors (31862990).

30140530 is a wasteful number, since it uses less digits than its factorization.

30140530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430593.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 30140530 is about 5490.0391619733. The cubic root of 30140530 is about 311.2076720771.

Adding to 30140530 its reverse (3504103), we get a palindrome (33644633).

The spelling of 30140530 in words is "thirty million, one hundred forty thousand, five hundred thirty".