729162162 has 20 divisors (see below), whose sum is σ = 1633863726. Its totient is φ = 243054000.

The previous prime is 729162157. The next prime is 729162193. The reversal of 729162162 is 261261927.

729162162 is a `hidden beast` number, since 7 + 29 + 1 + 621 + 6 + 2 = 666.

729162162 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 625550121 + 103612041 = 25011^2 + 10179^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2250339 + ... + 2250662.

Almost surely, 2^729162162 is an apocalyptic number.

729162162 is an abundant number, since it is smaller than the sum of its proper divisors (904701564).

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

729162162 is a wasteful number, since it uses less digits than its factorization.

729162162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4501015 (or 4501006 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 729162162 is about 27003.0028330184. The cubic root of 729162162 is about 900.0667283858.

It can be divided in two parts, 72916 and 2162, that added together give a triangular number (75078 = T₃₈₇).

The spelling of 729162162 in words is "seven hundred twenty-nine million, one hundred sixty-two thousand, one hundred sixty-two".