729328122 has 24 divisors (see below), whose sum is σ = 1597969620. Its totient is φ = 240377280.

The previous prime is 729328121. The next prime is 729328123. The reversal of 729328122 is 221823927.

It is an interprime number because it is at equal distance from previous prime (729328121) and next prime (729328123).

It can be written as a sum of positive squares in 2 ways, for example, as 727866441 + 1461681 = 26979^2 + 1209^2 .

It is not an unprimeable number, because it can be changed into a prime (729328121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 226029 + ... + 229232.

Almost surely, 2^729328122 is an apocalyptic number.

729328122 is an abundant number, since it is smaller than the sum of its proper divisors (868641498).

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

729328122 is a wasteful number, since it uses less digits than its factorization.

729328122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455358 (or 455355 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 729328122 is about 27006.0756497496. The cubic root of 729328122 is about 900.1350093758.

The spelling of 729328122 in words is "seven hundred twenty-nine million, three hundred twenty-eight thousand, one hundred twenty-two".