674257641 has 16 divisors (see below), whose sum is σ = 904525440. Its totient is φ = 446757120.

The previous prime is 674257601. The next prime is 674257643. The reversal of 674257641 is 146752476.

It is not a de Polignac number, because 674257641 - 2⁷ = 674257513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 674257593 and 674257602.

It is not an unprimeable number, because it can be changed into a prime (674257643) 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 15 ways as a sum of consecutive naturals, for example, 403155 + ... + 404823.

It is an arithmetic number, because the mean of its divisors is an integer number (56532840).

Almost surely, 2^674257641 is an apocalyptic number.

It is an amenable number.

674257641 is a deficient number, since it is larger than the sum of its proper divisors (230267799).

674257641 is a wasteful number, since it uses less digits than its factorization.

674257641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416.

The product of its digits is 282240, while the sum is 42.

The square root of 674257641 is about 25966.4714776575. The cubic root of 674257641 is about 876.8836226295.

The spelling of 674257641 in words is "six hundred seventy-four million, two hundred fifty-seven thousand, six hundred forty-one".