674643378 has 16 divisors (see below), whose sum is σ = 1349603136. Its totient is φ = 224828400.

The previous prime is 674643353. The next prime is 674643379. The reversal of 674643378 is 873346476.

674643378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (674643379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21600 + ... + 42612.

It is an arithmetic number, because the mean of its divisors is an integer number (84350196).

Almost surely, 2^674643378 is an apocalyptic number.

674643378 is an abundant number, since it is smaller than the sum of its proper divisors (674959758).

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

674643378 is a wasteful number, since it uses less digits than its factorization.

674643378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26369.

The product of its digits is 2032128, while the sum is 48.

The square root of 674643378 is about 25973.8980131978. The cubic root of 674643378 is about 877.0508099454.

The spelling of 674643378 in words is "six hundred seventy-four million, six hundred forty-three thousand, three hundred seventy-eight".