728374458 has 16 divisors (see below), whose sum is σ = 1664856000. Its totient is φ = 208106976.

The previous prime is 728374457. The next prime is 728374459. The reversal of 728374458 is 854473827.

It is an interprime number because it is at equal distance from previous prime (728374457) and next prime (728374459).

It is not an unprimeable number, because it can be changed into a prime (728374453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8671083 + ... + 8671166.

It is an arithmetic number, because the mean of its divisors is an integer number (104053500).

Almost surely, 2^728374458 is an apocalyptic number.

728374458 is an abundant number, since it is smaller than the sum of its proper divisors (936481542).

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

728374458 is a wasteful number, since it uses less digits than its factorization.

728374458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17342261.

The product of its digits is 1505280, while the sum is 48.

The square root of 728374458 is about 26988.4134027919. The cubic root of 728374458 is about 899.7425016430.

The spelling of 728374458 in words is "seven hundred twenty-eight million, three hundred seventy-four thousand, four hundred fifty-eight".