8030640 has 40 divisors (see below), whose sum is σ = 24895728. Its totient is φ = 2141440.

The previous prime is 8030623. The next prime is 8030663. The reversal of 8030640 is 460308.

It is a tau number, because it is divible by the number of its divisors (40).

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, 16491 + ... + 16970.

Almost surely, 2^8030640 is an apocalyptic number.

8030640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8030640 is an abundant number, since it is smaller than the sum of its proper divisors (16865088).

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

8030640 is a wasteful number, since it uses less digits than its factorization.

8030640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33477 (or 33471 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 8030640 is about 2833.8383863587. The cubic root of 8030640 is about 200.2550080496.

Adding to 8030640 its reverse (460308), we get a palindrome (8490948).

The spelling of 8030640 in words is "eight million, thirty thousand, six hundred forty".