30542816 has 24 divisors (see below), whose sum is σ = 60346440. Its totient is φ = 15216768.

The previous prime is 30542807. The next prime is 30542819. The reversal of 30542816 is 61824503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30542819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8270 + ... + 11378.

It is an arithmetic number, because the mean of its divisors is an integer number (2514435).

Almost surely, 2^30542816 is an apocalyptic number.

It is an amenable number.

30542816 is a deficient number, since it is larger than the sum of its proper divisors (29803624).

30542816 is a wasteful number, since it uses less digits than its factorization.

30542816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3426 (or 3418 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 30542816 is about 5526.5555276320. Note that the first 4 decimals coincide. The cubic root of 30542816 is about 312.5861215437.

The spelling of 30542816 in words is "thirty million, five hundred forty-two thousand, eight hundred sixteen".