30216404 has 6 divisors (see below), whose sum is σ = 52878714. Its totient is φ = 15108200.

The previous prime is 30216367. The next prime is 30216419. The reversal of 30216404 is 40461203.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 22543504 + 7672900 = 4748^2 + 2770^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 3777047 + ... + 3777054.

It is an arithmetic number, because the mean of its divisors is an integer number (8813119).

Almost surely, 2^30216404 is an apocalyptic number.

It is an amenable number.

30216404 is a deficient number, since it is larger than the sum of its proper divisors (22662310).

30216404 is a wasteful number, since it uses less digits than its factorization.

30216404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7554105 (or 7554103 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 30216404 is about 5496.9449697082. The cubic root of 30216404 is about 311.4685918966.

Adding to 30216404 its reverse (40461203), we get a palindrome (70677607).

The spelling of 30216404 in words is "thirty million, two hundred sixteen thousand, four hundred four".