729632120 has 64 divisors (see below), whose sum is σ = 1936742400. Its totient is φ = 242087040.

The previous prime is 729632117. The next prime is 729632131. The reversal of 729632120 is 21236927.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33350 + ... + 50709.

It is an arithmetic number, because the mean of its divisors is an integer number (30261600).

Almost surely, 2^729632120 is an apocalyptic number.

729632120 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

729632120 is an abundant number, since it is smaller than the sum of its proper divisors (1207110280).

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

729632120 is a wasteful number, since it uses less digits than its factorization.

729632120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84108 (or 84104 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 729632120 is about 27011.7033894569. The cubic root of 729632120 is about 900.2600565362.

The spelling of 729632120 in words is "seven hundred twenty-nine million, six hundred thirty-two thousand, one hundred twenty".