674481840 has 40 divisors (see below), whose sum is σ = 2090894448. Its totient is φ = 179861760.

The previous prime is 674481827. The next prime is 674481853. The reversal of 674481840 is 48184476.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (674481827) and next prime (674481853).

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 674481792 and 674481801.

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 7 ways as a sum of consecutive naturals, for example, 1404931 + ... + 1405410.

Almost surely, 2^674481840 is an apocalyptic number.

674481840 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

674481840 is an abundant number, since it is smaller than the sum of its proper divisors (1416412608).

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

674481840 is a wasteful number, since it uses less digits than its factorization.

674481840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2810357 (or 2810351 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 42.

The square root of 674481840 is about 25970.7882052124. The cubic root of 674481840 is about 876.9808034068.

The spelling of 674481840 in words is "six hundred seventy-four million, four hundred eighty-one thousand, eight hundred forty".