20022648 has 16 divisors (see below), whose sum is σ = 50056680. Its totient is φ = 6674208.

The previous prime is 20022631. The next prime is 20022677. The reversal of 20022648 is 84622002.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 834277 = 20022648 / (2 + 0 + 0 + 2 + 2 + 6 + 4 + 8).

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 in 3 ways as a sum of consecutive naturals, for example, 417115 + ... + 417162.

Almost surely, 2^20022648 is an apocalyptic number.

It is an amenable number.

20022648 is an abundant number, since it is smaller than the sum of its proper divisors (30034032).

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

20022648 is a wasteful number, since it uses less digits than its factorization.

20022648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834286 (or 834282 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 20022648 is about 4474.6673619388. The cubic root of 20022648 is about 271.5441832255.

The spelling of 20022648 in words is "twenty million, twenty-two thousand, six hundred forty-eight".