727220730 has 64 divisors (see below), whose sum is σ = 1891029888. Its totient is φ = 178268160.

The previous prime is 727220729. The next prime is 727220749. The reversal of 727220730 is 37022727.

727220730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5350 + ... + 38510.

It is an arithmetic number, because the mean of its divisors is an integer number (29547342).

Almost surely, 2^727220730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 727220730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (945514944).

727220730 is an abundant number, since it is smaller than the sum of its proper divisors (1163809158).

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

727220730 is a wasteful number, since it uses less digits than its factorization.

727220730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33231.

The product of its (nonzero) digits is 8232, while the sum is 30.

The square root of 727220730 is about 26967.0304260592. The cubic root of 727220730 is about 899.2671936130.

The spelling of 727220730 in words is "seven hundred twenty-seven million, two hundred twenty thousand, seven hundred thirty".