30345557 has 8 divisors (see below), whose sum is σ = 33157920. Its totient is φ = 27542160.

The previous prime is 30345541. The next prime is 30345569. The reversal of 30345557 is 75554303.

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 30345557 - 2⁴ = 30345541 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 (30345517) 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, 6263 + ... + 9995.

It is an arithmetic number, because the mean of its divisors is an integer number (4144740).

Almost surely, 2^30345557 is an apocalyptic number.

It is an amenable number.

30345557 is a deficient number, since it is larger than the sum of its proper divisors (2812363).

30345557 is a wasteful number, since it uses less digits than its factorization.

30345557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4483.

The product of its (nonzero) digits is 31500, while the sum is 32.

The square root of 30345557 is about 5508.6801504535. The cubic root of 30345557 is about 311.9117278497.

The spelling of 30345557 in words is "thirty million, three hundred forty-five thousand, five hundred fifty-seven".