20730348 has 36 divisors (see below), whose sum is σ = 52710840. Its totient is φ = 6869376.

The previous prime is 20730313. The next prime is 20730373. The reversal of 20730348 is 84303702.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×20730348² = 859494656402208, which contains 22 as substring.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 4836 + ... + 8052.

It is an arithmetic number, because the mean of its divisors is an integer number (1464190).

Almost surely, 2^20730348 is an apocalyptic number.

It is an amenable number.

20730348 is an abundant number, since it is smaller than the sum of its proper divisors (31980492).

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

20730348 is a wasteful number, since it uses less digits than its factorization.

20730348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3406 (or 3401 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 20730348 is about 4553.0591913569. The cubic root of 20730348 is about 274.7064548146.

The spelling of 20730348 in words is "twenty million, seven hundred thirty thousand, three hundred forty-eight".