20730614 has 4 divisors (see below), whose sum is σ = 31095924. Its totient is φ = 10365306.

The previous prime is 20730607. The next prime is 20730623. The reversal of 20730614 is 41603702.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20730614.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5182652 + ... + 5182655.

It is an arithmetic number, because the mean of its divisors is an integer number (7773981).

Almost surely, 2^20730614 is an apocalyptic number.

20730614 is a deficient number, since it is larger than the sum of its proper divisors (10365310).

20730614 is a wasteful number, since it uses less digits than its factorization.

20730614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10365309.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 20730614 is about 4553.0884023924. The cubic root of 20730614 is about 274.7076297684.

The spelling of 20730614 in words is "twenty million, seven hundred thirty thousand, six hundred fourteen".