30424939 has 4 divisors (see below), whose sum is σ = 30552480. Its totient is φ = 30297400.

The previous prime is 30424879. The next prime is 30424957. The reversal of 30424939 is 93942403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93942403 = 19 ⋅4944337.

It is a cyclic number.

It is not a de Polignac number, because 30424939 - 2¹³ = 30416747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30424969) 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, 63412 + ... + 63889.

It is an arithmetic number, because the mean of its divisors is an integer number (7638120).

Almost surely, 2^30424939 is an apocalyptic number.

30424939 is a deficient number, since it is larger than the sum of its proper divisors (127541).

30424939 is a wasteful number, since it uses less digits than its factorization.

30424939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127540.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 30424939 is about 5515.8806187226. The cubic root of 30424939 is about 312.1834712855.

The spelling of 30424939 in words is "thirty million, four hundred twenty-four thousand, nine hundred thirty-nine".