729378580 has 48 divisors (see below), whose sum is σ = 1783555200. Its totient is φ = 245351808.

The previous prime is 729378577. The next prime is 729378589. The reversal of 729378580 is 85873927.

It is a super-2 number, since 2×729378580² = 1063986225925632800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729378589) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 41730 + ... + 56569.

It is an arithmetic number, because the mean of its divisors is an integer number (37157400).

Almost surely, 2^729378580 is an apocalyptic number.

729378580 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

729378580 is an abundant number, since it is smaller than the sum of its proper divisors (1054176620).

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

729378580 is a wasteful number, since it uses less digits than its factorization.

729378580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98368 (or 98366 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 49.

The square root of 729378580 is about 27007.0098307828. The cubic root of 729378580 is about 900.1557672777.

The spelling of 729378580 in words is "seven hundred twenty-nine million, three hundred seventy-eight thousand, five hundred eighty".