20629230 has 16 divisors (see below), whose sum is σ = 49510224. Its totient is φ = 5501120.

The previous prime is 20629223. The next prime is 20629241. The reversal of 20629230 is 3292602.

It is a self number, because there is not a number n which added to its sum of digits gives 20629230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343791 + ... + 343850.

It is an arithmetic number, because the mean of its divisors is an integer number (3094389).

Almost surely, 2^20629230 is an apocalyptic number.

20629230 is an abundant number, since it is smaller than the sum of its proper divisors (28880994).

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

20629230 is a wasteful number, since it uses less digits than its factorization.

20629230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687651.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 20629230 is about 4541.9412149432. The cubic root of 20629230 is about 274.2590744061.

The spelling of 20629230 in words is "twenty million, six hundred twenty-nine thousand, two hundred thirty".