20282624 has 18 divisors (see below), whose sum is σ = 40486530. Its totient is φ = 10141184.

The previous prime is 20282609. The next prime is 20282653. The reversal of 20282624 is 42628202.

It can be written as a sum of positive squares in only one way, i.e., 19642624 + 640000 = 4432^2 + 800^2 .

It is a super-2 number, since 2×20282624² = 822769672650752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20282593 and 20282602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39359 + ... + 39870.

Almost surely, 2^20282624 is an apocalyptic number.

It is an amenable number.

20282624 is a deficient number, since it is larger than the sum of its proper divisors (20203906).

20282624 is an frugal number, since it uses more digits than its factorization.

20282624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79245 (or 79231 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 20282624 is about 4503.6234300838. The cubic root of 20282624 is about 272.7143850610.

The spelling of 20282624 in words is "twenty million, two hundred eighty-two thousand, six hundred twenty-four".