729818126 has 8 divisors (see below), whose sum is σ = 1159122960. Its totient is φ = 343443808.

The previous prime is 729818123. The next prime is 729818137. The reversal of 729818126 is 621818927.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729818123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10732586 + ... + 10732653.

It is an arithmetic number, because the mean of its divisors is an integer number (144890370).

Almost surely, 2^729818126 is an apocalyptic number.

729818126 is a deficient number, since it is larger than the sum of its proper divisors (429304834).

729818126 is a wasteful number, since it uses less digits than its factorization.

729818126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21465258.

The product of its digits is 96768, while the sum is 44.

The square root of 729818126 is about 27015.1462331782. The cubic root of 729818126 is about 900.3365514984.

The spelling of 729818126 in words is "seven hundred twenty-nine million, eight hundred eighteen thousand, one hundred twenty-six".