8036640 has 72 divisors (see below), whose sum is σ = 27429948. Its totient is φ = 2142720.

The previous prime is 8036629. The next prime is 8036681. The reversal of 8036640 is 466308.

It can be written as a sum of positive squares in 2 ways, for example, as 7817616 + 219024 = 2796^2 + 468^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1351 + ... + 4230.

Almost surely, 2^8036640 is an apocalyptic number.

8036640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8036640 is an abundant number, since it is smaller than the sum of its proper divisors (19393308).

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

8036640 is a wasteful number, since it uses less digits than its factorization.

8036640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5602 (or 5591 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 8036640 is about 2834.8968235193. The cubic root of 8036640 is about 200.3048683736.

The spelling of 8036640 in words is "eight million, thirty-six thousand, six hundred forty".