728576290 has 32 divisors (see below), whose sum is σ = 1473728256. Its totient is φ = 257315520.

The previous prime is 728576269. The next prime is 728576297. The reversal of 728576290 is 92675827.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 728576290.

It is not an unprimeable number, because it can be changed into a prime (728576297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118846 + ... + 124825.

It is an arithmetic number, because the mean of its divisors is an integer number (46054008).

Almost surely, 2^728576290 is an apocalyptic number.

728576290 is an abundant number, since it is smaller than the sum of its proper divisors (745151966).

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

728576290 is a wasteful number, since it uses less digits than its factorization.

728576290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243714.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 728576290 is about 26992.1523780524. The cubic root of 728576290 is about 899.8255999522.

The spelling of 728576290 in words is "seven hundred twenty-eight million, five hundred seventy-six thousand, two hundred ninety".