30240023 has 4 divisors (see below), whose sum is σ = 32989128. Its totient is φ = 27490920.

The previous prime is 30240017. The next prime is 30240053. The reversal of 30240023 is 32004203.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30240023 - 2⁶ = 30239959 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 (30240013) 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, 1374536 + ... + 1374557.

It is an arithmetic number, because the mean of its divisors is an integer number (8247282).

Almost surely, 2^30240023 is an apocalyptic number.

30240023 is a deficient number, since it is larger than the sum of its proper divisors (2749105).

30240023 is a wasteful number, since it uses less digits than its factorization.

30240023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2749104.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 30240023 is about 5499.0929252014. The cubic root of 30240023 is about 311.5497250974.

Adding to 30240023 its reverse (32004203), we get a palindrome (62244226).

The spelling of 30240023 in words is "thirty million, two hundred forty thousand, twenty-three".