30140750 has 16 divisors (see below), whose sum is σ = 56423952. Its totient is φ = 12056200.

The previous prime is 30140743. The next prime is 30140753. The reversal of 30140750 is 5704103.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30140753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60032 + ... + 60531.

It is an arithmetic number, because the mean of its divisors is an integer number (3526497).

Almost surely, 2^30140750 is an apocalyptic number.

30140750 is a deficient number, since it is larger than the sum of its proper divisors (26283202).

30140750 is a wasteful number, since it uses less digits than its factorization.

30140750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120580 (or 120570 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 30140750 is about 5490.0591982236. The cubic root of 30140750 is about 311.2084292582.

Adding to 30140750 its reverse (5704103), we get a palindrome (35844853).

The spelling of 30140750 in words is "thirty million, one hundred forty thousand, seven hundred fifty".