868020628 has 24 divisors (see below), whose sum is σ = 1565625600. Its totient is φ = 420869088.

The previous prime is 868020623. The next prime is 868020641. The reversal of 868020628 is 826020868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868020623) by changing a digit.

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, 688 + ... + 41671.

It is an arithmetic number, because the mean of its divisors is an integer number (65234400).

Almost surely, 2^868020628 is an apocalyptic number.

It is an amenable number.

868020628 is a deficient number, since it is larger than the sum of its proper divisors (697604972).

868020628 is a wasteful number, since it uses less digits than its factorization.

868020628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42519 (or 42517 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 868020628 is about 29462.1898032037. The cubic root of 868020628 is about 953.9157410270.

The spelling of 868020628 in words is "eight hundred sixty-eight million, twenty thousand, six hundred twenty-eight".