30542516 has 6 divisors (see below), whose sum is σ = 53449410. Its totient is φ = 15271256.

The previous prime is 30542507. The next prime is 30542531. The reversal of 30542516 is 61524503.

It can be written as a sum of positive squares in only one way, i.e., 29658916 + 883600 = 5446^2 + 940^2 .

It is a super-2 number, since 2×30542516² = 1865690567220512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3817811 + ... + 3817818.

It is an arithmetic number, because the mean of its divisors is an integer number (8908235).

Almost surely, 2^30542516 is an apocalyptic number.

It is an amenable number.

30542516 is a deficient number, since it is larger than the sum of its proper divisors (22906894).

30542516 is a wasteful number, since it uses less digits than its factorization.

30542516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7635633 (or 7635631 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 30542516 is about 5526.5283858857. The cubic root of 30542516 is about 312.5850981045.

The spelling of 30542516 in words is "thirty million, five hundred forty-two thousand, five hundred sixteen".