8285490 has 80 divisors (see below), whose sum is σ = 22816728. Its totient is φ = 2156544.

The previous prime is 8285471. The next prime is 8285491. The reversal of 8285490 is 945828.

It can be written as a sum of positive squares in 4 ways, for example, as 6487209 + 1798281 = 2547^2 + 1341^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8285491) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 42834 + ... + 43026.

Almost surely, 2^8285490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8285490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11408364).

8285490 is an abundant number, since it is smaller than the sum of its proper divisors (14531238).

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

8285490 is a wasteful number, since it uses less digits than its factorization.

8285490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 8285490 is about 2878.4527093562. The cubic root of 8285490 is about 202.3513312082.

It can be divided in two parts, 82854 and 90, that added together give a square (82944 = 288²).

The spelling of 8285490 in words is "eight million, two hundred eighty-five thousand, four hundred ninety".