728108352 has 70 divisors (see below), whose sum is σ = 2158356618. Its totient is φ = 242701056.

The previous prime is 728108347. The next prime is 728108369. The reversal of 728108352 is 253801827.

It can be written as a sum of positive squares in only one way, i.e., 679332096 + 48776256 = 26064^2 + 6984^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 65043 + ... + 75410.

Almost surely, 2^728108352 is an apocalyptic number.

728108352 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

728108352 is an abundant number, since it is smaller than the sum of its proper divisors (1430248266).

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

728108352 is a wasteful number, since it uses less digits than its factorization.

728108352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140477 (or 140458 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 728108352 is about 26983.4829479072. The cubic root of 728108352 is about 899.6329169649.

The spelling of 728108352 in words is "seven hundred twenty-eight million, one hundred eight thousand, three hundred fifty-two".