20282630 has 8 divisors (see below), whose sum is σ = 36508752. Its totient is φ = 8113048.

The previous prime is 20282609. The next prime is 20282653. The reversal of 20282630 is 3628202.

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

It is a super-2 number, since 2×20282630² = 822770159433800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20282596 and 20282605.

It is a congruent number.

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, 1014122 + ... + 1014141.

It is an arithmetic number, because the mean of its divisors is an integer number (4563594).

Almost surely, 2^20282630 is an apocalyptic number.

20282630 is a deficient number, since it is larger than the sum of its proper divisors (16226122).

20282630 is a wasteful number, since it uses less digits than its factorization.

20282630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028270.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 20282630 is about 4503.6240962141. The cubic root of 20282630 is about 272.7144119525.

The spelling of 20282630 in words is "twenty million, two hundred eighty-two thousand, six hundred thirty".