8281630 has 32 divisors (see below), whose sum is σ = 17152704. Its totient is φ = 2820096.

The previous prime is 8281597. The next prime is 8281639. The reversal of 8281630 is 361828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8281639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13204 + ... + 13816.

It is an arithmetic number, because the mean of its divisors is an integer number (536022).

Almost surely, 2^8281630 is an apocalyptic number.

8281630 is an abundant number, since it is smaller than the sum of its proper divisors (8871074).

8281630 is a wasteful number, since it uses less digits than its factorization.

8281630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 8281630 is about 2877.7821321288. The cubic root of 8281630 is about 202.3199028733.

It can be divided in two parts, 8281 and 630, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 8281630 in words is "eight million, two hundred eighty-one thousand, six hundred thirty".