678412260 has 72 divisors (see below), whose sum is σ = 2134082496. Its totient is φ = 180908640.

The previous prime is 678412213. The next prime is 678412303. The reversal of 678412260 is 62214876.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64936 + ... + 74655.

Almost surely, 2^678412260 is an apocalyptic number.

678412260 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

678412260 is an abundant number, since it is smaller than the sum of its proper divisors (1455670236).

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

678412260 is a wasteful number, since it uses less digits than its factorization.

678412260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139615 (or 139601 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 678412260 is about 26046.3483045129. The cubic root of 678412260 is about 878.6809871023.

It can be divided in two parts, 6784 and 12260, that added together give a square (19044 = 138²).

The spelling of 678412260 in words is "six hundred seventy-eight million, four hundred twelve thousand, two hundred sixty".