674009280 has 336 divisors, whose sum is σ = 2694432000. Its totient is φ = 151455744.

The previous prime is 674009269. The next prime is 674009293. The reversal of 674009280 is 82900476.

It is a tau number, because it is divible by the number of its divisors (336).

It is a super-2 number, since 2×674009280² = 908577019052236800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1350471 + ... + 1350969.

Almost surely, 2^674009280 is an apocalyptic number.

674009280 is a gapful number since it is divisible by the number (60) 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 674009280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1347216000).

674009280 is an abundant number, since it is smaller than the sum of its proper divisors (2020422720).

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

674009280 is a wasteful number, since it uses less digits than its factorization.

674009280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596 (or 583 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 674009280 is about 25961.6886970012. The cubic root of 674009280 is about 876.7759434943.

The spelling of 674009280 in words is "six hundred seventy-four million, nine thousand, two hundred eighty".