30506736 has 40 divisors (see below), whose sum is σ = 84873040. Its totient is φ = 9386496.

The previous prime is 30506731. The next prime is 30506803. The reversal of 30506736 is 63760503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30506731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23821 + ... + 25068.

It is an arithmetic number, because the mean of its divisors is an integer number (2121826).

Almost surely, 2^30506736 is an apocalyptic number.

It is an amenable number.

30506736 is an abundant number, since it is smaller than the sum of its proper divisors (54366304).

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

30506736 is a wasteful number, since it uses less digits than its factorization.

30506736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48913 (or 48907 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 30.

The square root of 30506736 is about 5523.2903237110. The cubic root of 30506736 is about 312.4629878298.

The spelling of 30506736 in words is "thirty million, five hundred six thousand, seven hundred thirty-six".