728061474 has 128 divisors (see below), whose sum is σ = 1782743040. Its totient is φ = 193881600.

The previous prime is 728061473. The next prime is 728061479. The reversal of 728061474 is 474160827.

It is not an unprimeable number, because it can be changed into a prime (728061473) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7068507 + ... + 7068609.

It is an arithmetic number, because the mean of its divisors is an integer number (13927680).

Almost surely, 2^728061474 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 728061474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (891371520).

728061474 is an abundant number, since it is smaller than the sum of its proper divisors (1054681566).

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

728061474 is a wasteful number, since it uses less digits than its factorization.

728061474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296.

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 728061474 is about 26982.6142914285. The cubic root of 728061474 is about 899.6136094461.

The spelling of 728061474 in words is "seven hundred twenty-eight million, sixty-one thousand, four hundred seventy-four".