30516404 has 12 divisors (see below), whose sum is σ = 53744964. Its totient is φ = 15160704.

The previous prime is 30516401. The next prime is 30516407. The reversal of 30516404 is 40461503.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30516401) and next prime (30516407).

It can be written as a sum of positive squares in 2 ways, for example, as 13690000 + 16826404 = 3700^2 + 4102^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30516404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30516401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23669 + ... + 24924.

It is an arithmetic number, because the mean of its divisors is an integer number (4478747).

Almost surely, 2^30516404 is an apocalyptic number.

It is an amenable number.

30516404 is a deficient number, since it is larger than the sum of its proper divisors (23228560).

30516404 is a wasteful number, since it uses less digits than its factorization.

30516404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48754 (or 48752 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 30516404 is about 5524.1654573338. The cubic root of 30516404 is about 312.4959922686.

Adding to 30516404 its reverse (40461503), we get a palindrome (70977907).

The spelling of 30516404 in words is "thirty million, five hundred sixteen thousand, four hundred four".