20147282 has 8 divisors (see below), whose sum is σ = 30240000. Its totient is φ = 10067284.

The previous prime is 20147273. The next prime is 20147297. The reversal of 20147282 is 28274102.

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

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, 4319 + ... + 7677.

It is an arithmetic number, because the mean of its divisors is an integer number (3780000).

Almost surely, 2^20147282 is an apocalyptic number.

20147282 is a deficient number, since it is larger than the sum of its proper divisors (10092718).

20147282 is a wasteful number, since it uses less digits than its factorization.

20147282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6360.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 20147282 is about 4488.5723788305. The cubic root of 20147282 is about 272.1064408241.

The spelling of 20147282 in words is "twenty million, one hundred forty-seven thousand, two hundred eighty-two".