30074247 has 80 divisors (see below), whose sum is σ = 55756800. Its totient is φ = 15785280.

The previous prime is 30074237. The next prime is 30074263. The reversal of 30074247 is 74247003.

It is not a de Polignac number, because 30074247 - 2⁸ = 30073991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 30074247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30074227) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 509704 + ... + 509762.

It is an arithmetic number, because the mean of its divisors is an integer number (696960).

Almost surely, 2^30074247 is an apocalyptic number.

30074247 is a deficient number, since it is larger than the sum of its proper divisors (25682553).

30074247 is a wasteful number, since it uses less digits than its factorization.

30074247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 30074247 is about 5483.9991794310. Note that the first 3 decimals coincide. The cubic root of 30074247 is about 310.9793757410.

It can be divided in two parts, 300 and 74247, that added together give a palindrome (74547).

The spelling of 30074247 in words is "thirty million, seventy-four thousand, two hundred forty-seven".