20730604 has 24 divisors (see below), whose sum is σ = 37227008. Its totient is φ = 10098000.

The previous prime is 20730587. The next prime is 20730607. The reversal of 20730604 is 40603702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20730607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27229 + ... + 27979.

Almost surely, 2^20730604 is an apocalyptic number.

It is an amenable number.

20730604 is a deficient number, since it is larger than the sum of its proper divisors (16496404).

20730604 is a wasteful number, since it uses less digits than its factorization.

20730604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925 (or 923 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 20730604 is about 4553.0873042365. The cubic root of 20730604 is about 274.7075855974.

The spelling of 20730604 in words is "twenty million, seven hundred thirty thousand, six hundred four".