674349816 has 32 divisors (see below), whose sum is σ = 1926714240. Its totient is φ = 192671328.

The previous prime is 674349803. The next prime is 674349817. The reversal of 674349816 is 618943476.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674349817) by changing a digit.

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, 2006826 + ... + 2007161.

It is an arithmetic number, because the mean of its divisors is an integer number (60209820).

Almost surely, 2^674349816 is an apocalyptic number.

It is an amenable number.

674349816 is an abundant number, since it is smaller than the sum of its proper divisors (1252364424).

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

674349816 is a wasteful number, since it uses less digits than its factorization.

674349816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4014003 (or 4013999 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 674349816 is about 25968.2463019743. The cubic root of 674349816 is about 876.9235791980.

The spelling of 674349816 in words is "six hundred seventy-four million, three hundred forty-nine thousand, eight hundred sixteen".