30724065 has 24 divisors (see below), whose sum is σ = 53389440. Its totient is φ = 16344864.

The previous prime is 30724063. The next prime is 30724081. The reversal of 30724065 is 56042703.

It is a happy number.

It is not a de Polignac number, because 30724065 - 2¹ = 30724063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30724063) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27304 + ... + 28406.

It is an arithmetic number, because the mean of its divisors is an integer number (2224560).

Almost surely, 2^30724065 is an apocalyptic number.

It is an amenable number.

30724065 is a deficient number, since it is larger than the sum of its proper divisors (22665375).

30724065 is a wasteful number, since it uses less digits than its factorization.

30724065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733 (or 1730 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 30724065 is about 5542.9292797220. The cubic root of 30724065 is about 313.2032248656.

Adding to 30724065 its reverse (56042703), we get a palindrome (86766768).

The spelling of 30724065 in words is "thirty million, seven hundred twenty-four thousand, sixty-five".