30140423 has 8 divisors (see below), whose sum is σ = 30666240. Its totient is φ = 29617560.

The previous prime is 30140413. The next prime is 30140431. The reversal of 30140423 is 32404103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30140423 - 2²⁰ = 29091847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30140413) 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, 30686 + ... + 31652.

It is an arithmetic number, because the mean of its divisors is an integer number (3833280).

Almost surely, 2^30140423 is an apocalyptic number.

30140423 is a deficient number, since it is larger than the sum of its proper divisors (525817).

30140423 is an equidigital number, since it uses as much as digits as its factorization.

30140423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 30140423 is about 5490.0294170432. The cubic root of 30140423 is about 311.2073038104.

Adding to 30140423 its reverse (32404103), we get a palindrome (62544526).

The spelling of 30140423 in words is "thirty million, one hundred forty thousand, four hundred twenty-three".