728290472 has 128 divisors (see below), whose sum is σ = 1803513600. Its totient is φ = 267522048.

The previous prime is 728290457. The next prime is 728290487. The reversal of 728290472 is 274092827.

It is an interprime number because it is at equal distance from previous prime (728290457) and next prime (728290487).

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, 1026854 + ... + 1027562.

It is an arithmetic number, because the mean of its divisors is an integer number (14089950).

Almost surely, 2^728290472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 728290472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (901756800).

728290472 is an abundant number, since it is smaller than the sum of its proper divisors (1075223128).

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

728290472 is a wasteful number, since it uses less digits than its factorization.

728290472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835 (or 831 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 728290472 is about 26986.8573939242. The cubic root of 728290472 is about 899.7079183882.

The spelling of 728290472 in words is "seven hundred twenty-eight million, two hundred ninety thousand, four hundred seventy-two".