674289792 has 128 divisors (see below), whose sum is σ = 2171131200. Its totient is φ = 204318720.

The previous prime is 674289787. The next prime is 674289793. The reversal of 674289792 is 297982476.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674289793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29148 + ... + 46884.

Almost surely, 2^674289792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 674289792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1085565600).

674289792 is an abundant number, since it is smaller than the sum of its proper divisors (1496841408).

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

674289792 is a wasteful number, since it uses less digits than its factorization.

674289792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17771 (or 17753 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 674289792 is about 25967.0905570878. The cubic root of 674289792 is about 876.8975600502.

The spelling of 674289792 in words is "six hundred seventy-four million, two hundred eighty-nine thousand, seven hundred ninety-two".