729981500 has 24 divisors (see below), whose sum is σ = 1594280688. Its totient is φ = 291992400.

The previous prime is 729981491. The next prime is 729981503. The reversal of 729981500 is 5189927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729981503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729482 + ... + 730481.

It is an arithmetic number, because the mean of its divisors is an integer number (66428362).

Almost surely, 2^729981500 is an apocalyptic number.

It is an amenable number.

729981500 is an abundant number, since it is smaller than the sum of its proper divisors (864299188).

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

729981500 is a wasteful number, since it uses less digits than its factorization.

729981500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459982 (or 1459970 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 729981500 is about 27018.1698121838. The cubic root of 729981500 is about 900.4037283306.

The spelling of 729981500 in words is "seven hundred twenty-nine million, nine hundred eighty-one thousand, five hundred".