729091436 has 12 divisors (see below), whose sum is σ = 1319907120. Its totient is φ = 351975120.

The previous prime is 729091417. The next prime is 729091453. The reversal of 729091436 is 634190927.

It is a junction number, because it is equal to n+sod(n) for n = 729091393 and 729091402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3142520 + ... + 3142751.

It is an arithmetic number, because the mean of its divisors is an integer number (109992260).

Almost surely, 2^729091436 is an apocalyptic number.

It is an amenable number.

729091436 is a deficient number, since it is larger than the sum of its proper divisors (590815684).

729091436 is a wasteful number, since it uses less digits than its factorization.

729091436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6285304 (or 6285302 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 729091436 is about 27001.6932061676. The cubic root of 729091436 is about 900.0376264105.

The spelling of 729091436 in words is "seven hundred twenty-nine million, ninety-one thousand, four hundred thirty-six".