30047049 has 18 divisors (see below), whose sum is σ = 43959006. Its totient is φ = 19776960.

The previous prime is 30047047. The next prime is 30047051. The reversal of 30047049 is 94074003.

It is an interprime number because it is at equal distance from previous prime (30047047) and next prime (30047051).

It can be written as a sum of positive squares in 3 ways, for example, as 12027024 + 18020025 = 3468^2 + 4245^2 .

It is not a de Polignac number, because 30047049 - 2¹ = 30047047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30047047) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 106789 + ... + 107069.

It is an arithmetic number, because the mean of its divisors is an integer number (2442167).

Almost surely, 2^30047049 is an apocalyptic number.

It is an amenable number.

30047049 is a deficient number, since it is larger than the sum of its proper divisors (13911957).

30047049 is a wasteful number, since it uses less digits than its factorization.

30047049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 30047049 is about 5481.5188588565. The cubic root of 30047049 is about 310.8856015113.

The spelling of 30047049 in words is "thirty million, forty-seven thousand, forty-nine".