674217984 has 240 divisors, whose sum is σ = 2076117120. Its totient is φ = 192675840.

The previous prime is 674217953. The next prime is 674218009. The reversal of 674217984 is 489712476.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15679467 + ... + 15679509.

It is an arithmetic number, because the mean of its divisors is an integer number (8650488).

Almost surely, 2^674217984 is an apocalyptic number.

674217984 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 674217984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1038058560).

674217984 is an abundant number, since it is smaller than the sum of its proper divisors (1401899136).

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

674217984 is a wasteful number, since it uses less digits than its factorization.

674217984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 88 counting only the distinct ones).

The product of its digits is 677376, while the sum is 48.

The square root of 674217984 is about 25965.7078470817. The cubic root of 674217984 is about 876.8664307563.

The spelling of 674217984 in words is "six hundred seventy-four million, two hundred seventeen thousand, nine hundred eighty-four".