20730802 has 8 divisors (see below), whose sum is σ = 31132800. Its totient is φ = 10353204.

The previous prime is 20730799. The next prime is 20730823. The reversal of 20730802 is 20803702.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 3802 + ... + 7477.

It is an arithmetic number, because the mean of its divisors is an integer number (3891600).

Almost surely, 2^20730802 is an apocalyptic number.

20730802 is a deficient number, since it is larger than the sum of its proper divisors (10401998).

20730802 is a wasteful number, since it uses less digits than its factorization.

20730802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12200.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 20730802 is about 4553.1090476728. The cubic root of 20730802 is about 274.7084601808.

Subtracting 20730802 from its reverse (20803702), we obtain a square (72900 = 270²).

The spelling of 20730802 in words is "twenty million, seven hundred thirty thousand, eight hundred two".