30042537 has 12 divisors (see below), whose sum is σ = 46596816. Its totient is φ = 17167080.

The previous prime is 30042533. The next prime is 30042547. The reversal of 30042537 is 73524003.

It is not a de Polignac number, because 30042537 - 2² = 30042533 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30042533) 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 11 ways as a sum of consecutive naturals, for example, 102039 + ... + 102332.

It is an arithmetic number, because the mean of its divisors is an integer number (3883068).

Almost surely, 2^30042537 is an apocalyptic number.

It is an amenable number.

30042537 is a deficient number, since it is larger than the sum of its proper divisors (16554279).

30042537 is a wasteful number, since it uses less digits than its factorization.

30042537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204388 (or 204381 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 30042537 is about 5481.1072786436. The cubic root of 30042537 is about 310.8700394056.

The spelling of 30042537 in words is "thirty million, forty-two thousand, five hundred thirty-seven".