678266252 has 24 divisors (see below), whose sum is σ = 1195344192. Its totient is φ = 336747600.

The previous prime is 678266231. The next prime is 678266291. The reversal of 678266252 is 252662876.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582623 + ... + 583785.

It is an arithmetic number, because the mean of its divisors is an integer number (49806008).

Almost surely, 2^678266252 is an apocalyptic number.

It is an amenable number.

678266252 is a deficient number, since it is larger than the sum of its proper divisors (517077940).

678266252 is a wasteful number, since it uses less digits than its factorization.

678266252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069 (or 2067 counting only the distinct ones).

The product of its digits is 483840, while the sum is 44.

The square root of 678266252 is about 26043.5453039712. The cubic root of 678266252 is about 878.6179459565.

The spelling of 678266252 in words is "six hundred seventy-eight million, two hundred sixty-six thousand, two hundred fifty-two".