729674280 has 192 divisors, whose sum is σ = 2469841920. Its totient is φ = 186624000.

The previous prime is 729674279. The next prime is 729674303. The reversal of 729674280 is 82476927.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1684944 + ... + 1685376.

It is an arithmetic number, because the mean of its divisors is an integer number (12863760).

Almost surely, 2^729674280 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 729674280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1234920960).

729674280 is an abundant number, since it is smaller than the sum of its proper divisors (1740167640).

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

729674280 is a wasteful number, since it uses less digits than its factorization.

729674280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632 (or 625 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 729674280 is about 27012.4837806522. The cubic root of 729674280 is about 900.2773959743.

The spelling of 729674280 in words is "seven hundred twenty-nine million, six hundred seventy-four thousand, two hundred eighty".