820418282 has 16 divisors (see below), whose sum is σ = 1263458952. Its totient is φ = 399310080.

The previous prime is 820418281. The next prime is 820418293. The reversal of 820418282 is 282814028.

It can be written as a sum of positive squares in 4 ways, for example, as 730566841 + 89851441 = 27029^2 + 9479^2 .

It is not an unprimeable number, because it can be changed into a prime (820418281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26528 + ... + 48420.

Almost surely, 2^820418282 is an apocalyptic number.

820418282 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

820418282 is a deficient number, since it is larger than the sum of its proper divisors (443040670).

820418282 is a wasteful number, since it uses less digits than its factorization.

820418282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22393.

The product of its (nonzero) digits is 16384, while the sum is 35.

The square root of 820418282 is about 28642.9447159331. The cubic root of 820418282 is about 936.1492847883.

The spelling of 820418282 in words is "eight hundred twenty million, four hundred eighteen thousand, two hundred eighty-two".