674615240 has 32 divisors (see below), whose sum is σ = 1634645880. Its totient is φ = 249088512.

The previous prime is 674615239. The next prime is 674615243. The reversal of 674615240 is 42516476.

674615240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 626701156 + 47914084 = 25034^2 + 6922^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 674615240.

It is not an unprimeable number, because it can be changed into a prime (674615243) 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, 648149 + ... + 649188.

Almost surely, 2^674615240 is an apocalyptic number.

It is an amenable number.

674615240 is an abundant number, since it is smaller than the sum of its proper divisors (960030640).

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

674615240 is a wasteful number, since it uses less digits than its factorization.

674615240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297361 (or 1297357 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 674615240 is about 25973.3563483813. The cubic root of 674615240 is about 877.0386164421.

The spelling of 674615240 in words is "six hundred seventy-four million, six hundred fifteen thousand, two hundred forty".