648570282 has 32 divisors (see below), whose sum is σ = 1409464320. Its totient is φ = 198203760.

The previous prime is 648570257. The next prime is 648570319. The reversal of 648570282 is 282075846.

It is a happy 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, 88228 + ... + 95295.

It is an arithmetic number, because the mean of its divisors is an integer number (44045760).

Almost surely, 2^648570282 is an apocalyptic number.

648570282 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

648570282 is an abundant number, since it is smaller than the sum of its proper divisors (760894038).

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

648570282 is a wasteful number, since it uses less digits than its factorization.

648570282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183578.

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 648570282 is about 25467.0430556828. The cubic root of 648570282 is about 865.6035223715.

It can be divided in two parts, 6485 and 70282, that added together give a palindrome (76767).

The spelling of 648570282 in words is "six hundred forty-eight million, five hundred seventy thousand, two hundred eighty-two".