20702030 has 8 divisors (see below), whose sum is σ = 37263672. Its totient is φ = 8280808.

The previous prime is 20702021. The next prime is 20702041. The reversal of 20702030 is 3020702.

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

It is a super-2 number, since 2×20702030² = 857148092241800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20701996 and 20702014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1035092 + ... + 1035111.

It is an arithmetic number, because the mean of its divisors is an integer number (4657959).

Almost surely, 2^20702030 is an apocalyptic number.

20702030 is a deficient number, since it is larger than the sum of its proper divisors (16561642).

20702030 is a wasteful number, since it uses less digits than its factorization.

20702030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2070210.

The product of its (nonzero) digits is 84, while the sum is 14.

The square root of 20702030 is about 4549.9483513552. The cubic root of 20702030 is about 274.5813132874.

Adding to 20702030 its reverse (3020702), we get a palindrome (23722732).

The spelling of 20702030 in words is "twenty million, seven hundred two thousand, thirty".