20672230 has 16 divisors (see below), whose sum is σ = 37406304. Its totient is φ = 8225280.

The previous prime is 20672227. The next prime is 20672231. The reversal of 20672230 is 3227602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20672231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3426 + ... + 7285.

It is an arithmetic number, because the mean of its divisors is an integer number (2337894).

Almost surely, 2^20672230 is an apocalyptic number.

20672230 is a deficient number, since it is larger than the sum of its proper divisors (16734074).

20672230 is a wasteful number, since it uses less digits than its factorization.

20672230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10911.

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

The square root of 20672230 is about 4546.6724095760. The cubic root of 20672230 is about 274.4494992825.

Adding to 20672230 its reverse (3227602), we get a palindrome (23899832).

It can be divided in two parts, 20672 and 230, that added together give a palindrome (20902).

The spelling of 20672230 in words is "twenty million, six hundred seventy-two thousand, two hundred thirty".