7840186228 has 12 divisors (see below), whose sum is σ = 15680372512. Its totient is φ = 3360079800.

The previous prime is 7840186219. The next prime is 7840186273. The reversal of 7840186228 is 8226810487.

It is a happy number.

7840186228 is an admirable number.

It is a super-2 number, since 2×7840186228² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140003298 + ... + 140003353.

Almost surely, 2^7840186228 is an apocalyptic number.

It is an amenable number.

7840186228 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7840186228 is a wasteful number, since it uses less digits than its factorization.

7840186228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280006662 (or 280006660 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 46.

The square root of 7840186228 is about 88544.8260939057. The cubic root of 7840186228 is about 1986.5925060651.

The spelling of 7840186228 in words is "seven billion, eight hundred forty million, one hundred eighty-six thousand, two hundred twenty-eight".