674781470 has 32 divisors (see below), whose sum is σ = 1338706656. Its totient is φ = 242841600.

The previous prime is 674781449. The next prime is 674781509. The reversal of 674781470 is 74187476.

It is a happy number.

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

It is a Curzon 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, 20951 + ... + 42290.

It is an arithmetic number, because the mean of its divisors is an integer number (41834583).

Almost surely, 2^674781470 is an apocalyptic number.

674781470 is a deficient number, since it is larger than the sum of its proper divisors (663925186).

674781470 is a wasteful number, since it uses less digits than its factorization.

674781470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63356.

The product of its (nonzero) digits is 263424, while the sum is 44.

The square root of 674781470 is about 25976.5561612774. The cubic root of 674781470 is about 877.1106467134.

The spelling of 674781470 in words is "six hundred seventy-four million, seven hundred eighty-one thousand, four hundred seventy".