674645340 has 48 divisors (see below), whose sum is σ = 2000128032. Its totient is φ = 169322496.

The previous prime is 674645339. The next prime is 674645359. The reversal of 674645340 is 43546476.

It is a happy number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 329689 + ... + 331728.

It is an arithmetic number, because the mean of its divisors is an integer number (41669334).

Almost surely, 2^674645340 is an apocalyptic number.

674645340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

674645340 is an abundant number, since it is smaller than the sum of its proper divisors (1325482692).

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

674645340 is a wasteful number, since it uses less digits than its factorization.

674645340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661446 (or 661444 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 39.

The square root of 674645340 is about 25973.9357818564. The cubic root of 674645340 is about 877.0516601586.

The spelling of 674645340 in words is "six hundred seventy-four million, six hundred forty-five thousand, three hundred forty".