30071424 has 32 divisors (see below), whose sum is σ = 79878240. Its totient is φ = 10023680.

The previous prime is 30071413. The next prime is 30071467. The reversal of 30071424 is 42417003.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 30071424.

It is an unprimeable number.

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, 38772 + ... + 39539.

It is an arithmetic number, because the mean of its divisors is an integer number (2496195).

Almost surely, 2^30071424 is an apocalyptic number.

It is an amenable number.

30071424 is an abundant number, since it is smaller than the sum of its proper divisors (49806816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30071424 is an equidigital number, since it uses as much as digits as its factorization.

30071424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78328 (or 78316 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 30071424 is about 5483.7417882318. The cubic root of 30071424 is about 310.9696451317.

Adding to 30071424 its reverse (42417003), we get a palindrome (72488427).

The spelling of 30071424 in words is "thirty million, seventy-one thousand, four hundred twenty-four".