20288282 has 8 divisors (see below), whose sum is σ = 34779936. Its totient is φ = 8694972.

The previous prime is 20288273. The next prime is 20288297. The reversal of 20288282 is 28288202.

It is a happy number.

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

It is a super-2 number, since 2×20288282² = 823228773023048, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 724568 + ... + 724595.

It is an arithmetic number, because the mean of its divisors is an integer number (4347492).

Almost surely, 2^20288282 is an apocalyptic number.

20288282 is a deficient number, since it is larger than the sum of its proper divisors (14491654).

20288282 is a wasteful number, since it uses less digits than its factorization.

20288282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449172.

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 20288282 is about 4504.2515471496. The cubic root of 20288282 is about 272.7397413222.

The spelling of 20288282 in words is "twenty million, two hundred eighty-eight thousand, two hundred eighty-two".