8275840 has 64 divisors (see below), whose sum is σ = 20183760. Its totient is φ = 3244032.

The previous prime is 8275819. The next prime is 8275873. The reversal of 8275840 is 485728.

8275840 = T₁₉₁ + T₁₉₂ + ... + T₃₈₃.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 8275796 and 8275805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42784 + ... + 42976.

Almost surely, 2^8275840 is an apocalyptic number.

8275840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8275840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10091880).

8275840 is an abundant number, since it is smaller than the sum of its proper divisors (11907920).

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

8275840 is a wasteful number, since it uses less digits than its factorization.

8275840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 8275840 is about 2876.7759732033. The cubic root of 8275840 is about 202.2727420551.

The spelling of 8275840 in words is "eight million, two hundred seventy-five thousand, eight hundred forty".