1868746628 has 24 divisors (see below), whose sum is σ = 3753970752. Its totient is φ = 797360544.

The previous prime is 1868746601. The next prime is 1868746643. The reversal of 1868746628 is 8266478681.

It is a super-2 number, since 2×1868746628² = 6984427919322740768, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140651 + ... + 153362.

It is an arithmetic number, because the mean of its divisors is an integer number (156415448).

Almost surely, 2^1868746628 is an apocalyptic number.

It is an amenable number.

1868746628 is an abundant number, since it is smaller than the sum of its proper divisors (1885224124).

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

1868746628 is a wasteful number, since it uses less digits than its factorization.

1868746628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294251 (or 294249 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 56.

The square root of 1868746628 is about 43229.0021628999. The cubic root of 1868746628 is about 1231.7336533139.

The spelling of 1868746628 in words is "one billion, eight hundred sixty-eight million, seven hundred forty-six thousand, six hundred twenty-eight".