729341381 has 8 divisors (see below), whose sum is σ = 735496704. Its totient is φ = 723206880.

The previous prime is 729341359. The next prime is 729341399. The reversal of 729341381 is 183143927.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-729341381 is a prime.

It is a super-2 number, since 2×729341381² = 1063877700077974322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729341311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69596 + ... + 79386.

It is an arithmetic number, because the mean of its divisors is an integer number (91937088).

Almost surely, 2^729341381 is an apocalyptic number.

It is an amenable number.

729341381 is a deficient number, since it is larger than the sum of its proper divisors (6155323).

729341381 is a wasteful number, since it uses less digits than its factorization.

729341381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10411.

The product of its digits is 36288, while the sum is 38.

The square root of 729341381 is about 27006.3211304317. The cubic root of 729341381 is about 900.1404640847.

The spelling of 729341381 in words is "seven hundred twenty-nine million, three hundred forty-one thousand, three hundred eighty-one".