20282782 has 32 divisors (see below), whose sum is σ = 34292160. Its totient is φ = 8935680.

The previous prime is 20282777. The next prime is 20282807. The reversal of 20282782 is 28728202.

It is a happy number.

It is a super-2 number, since 2×20282782² = 822782491319048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56319 + ... + 56677.

It is an arithmetic number, because the mean of its divisors is an integer number (1071630).

Almost surely, 2^20282782 is an apocalyptic number.

20282782 is a deficient number, since it is larger than the sum of its proper divisors (14009378).

20282782 is a wasteful number, since it uses less digits than its factorization.

20282782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468.

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 20282782 is about 4503.6409714807. The cubic root of 20282782 is about 272.7150932002.

The spelling of 20282782 in words is "twenty million, two hundred eighty-two thousand, seven hundred eighty-two".