30542012 has 6 divisors (see below), whose sum is σ = 53448528. Its totient is φ = 15271004.

The previous prime is 30542011. The next prime is 30542023. The reversal of 30542012 is 21024503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30542011) 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 as a sum of consecutive naturals, namely, 3817748 + ... + 3817755.

It is an arithmetic number, because the mean of its divisors is an integer number (8908088).

Almost surely, 2^30542012 is an apocalyptic number.

It is an amenable number.

30542012 is a deficient number, since it is larger than the sum of its proper divisors (22906516).

30542012 is a wasteful number, since it uses less digits than its factorization.

30542012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7635507 (or 7635505 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 30542012 is about 5526.4827874517. The cubic root of 30542012 is about 312.5833787116.

Adding to 30542012 its reverse (21024503), we get a palindrome (51566515).

The spelling of 30542012 in words is "thirty million, five hundred forty-two thousand, twelve".