30743049 has 4 divisors (see below), whose sum is σ = 40990736. Its totient is φ = 20495364.

The previous prime is 30742993. The next prime is 30743051. The reversal of 30743049 is 94034703.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-30743049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30743099) 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, 5123839 + ... + 5123844.

It is an arithmetic number, because the mean of its divisors is an integer number (10247684).

Almost surely, 2^30743049 is an apocalyptic number.

It is an amenable number.

30743049 is a deficient number, since it is larger than the sum of its proper divisors (10247687).

30743049 is a wasteful number, since it uses less digits than its factorization.

30743049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10247686.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 30743049 is about 5544.6414672186. The cubic root of 30743049 is about 313.2677196498.

The spelling of 30743049 in words is "thirty million, seven hundred forty-three thousand, forty-nine".