30752385 has 16 divisors (see below), whose sum is σ = 49641984. Its totient is φ = 16255232.

The previous prime is 30752377. The next prime is 30752399. The reversal of 30752385 is 58325703.

It is a cyclic number.

It is not a de Polignac number, because 30752385 - 2³ = 30752377 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7377 + ... + 10766.

It is an arithmetic number, because the mean of its divisors is an integer number (3102624).

Almost surely, 2^30752385 is an apocalyptic number.

It is an amenable number.

30752385 is a deficient number, since it is larger than the sum of its proper divisors (18889599).

30752385 is a wasteful number, since it uses less digits than its factorization.

30752385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18264.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 30752385 is about 5545.4832972429. The cubic root of 30752385 is about 313.2994273205.

It can be divided in two parts, 3075 and 2385, that added together give a triangular number (5460 = T₁₀₄).

The spelling of 30752385 in words is "thirty million, seven hundred fifty-two thousand, three hundred eighty-five".