30074257 has 8 divisors (see below), whose sum is σ = 30519720. Its totient is φ = 29631360.

The previous prime is 30074237. The next prime is 30074263. The reversal of 30074257 is 75247003.

It is a Cunningham number, because it is equal to 5484²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 5779216 + 24295041 = 2404^2 + 4929^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30074257 - 2¹⁹ = 29549969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30074227) 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 7 ways as a sum of consecutive naturals, for example, 40663 + ... + 41395.

It is an arithmetic number, because the mean of its divisors is an integer number (3814965).

Almost surely, 2^30074257 is an apocalyptic number.

It is an amenable number.

30074257 is a deficient number, since it is larger than the sum of its proper divisors (445463).

30074257 is an equidigital number, since it uses as much as digits as its factorization.

30074257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 30074257 is about 5484.0000911743. Note that the first 4 decimals coincide. The cubic root of 30074257 is about 310.9794102090.

The spelling of 30074257 in words is "thirty million, seventy-four thousand, two hundred fifty-seven".