7840268 has 6 divisors (see below), whose sum is σ = 13720476. Its totient is φ = 3920132.

The previous prime is 7840267. The next prime is 7840271. The reversal of 7840268 is 8620487.

It is a super-2 number, since 2×7840268² = 122939604623648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7840267) by changing a digit.

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 as a sum of consecutive naturals, namely, 980030 + ... + 980037.

It is an arithmetic number, because the mean of its divisors is an integer number (2286746).

Almost surely, 2^7840268 is an apocalyptic number.

It is an amenable number.

7840268 is a deficient number, since it is larger than the sum of its proper divisors (5880208).

7840268 is a wasteful number, since it uses less digits than its factorization.

7840268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960071 (or 1960069 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 7840268 is about 2800.0478567339. The cubic root of 7840268 is about 198.6599412665.

The spelling of 7840268 in words is "seven million, eight hundred forty thousand, two hundred sixty-eight".