728148774 has 8 divisors (see below), whose sum is σ = 1456297560. Its totient is φ = 242716256.

The previous prime is 728148763. The next prime is 728148797. The reversal of 728148774 is 477841827.

It is a sphenic number, since it is the product of 3 distinct primes.

728148774 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60679059 + ... + 60679070.

It is an arithmetic number, because the mean of its divisors is an integer number (182037195).

Almost surely, 2^728148774 is an apocalyptic number.

728148774 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

728148774 is a wasteful number, since it uses less digits than its factorization.

728148774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121358134.

The product of its digits is 702464, while the sum is 48.

The square root of 728148774 is about 26984.2319512711. The cubic root of 728148774 is about 899.6495648025.

The spelling of 728148774 in words is "seven hundred twenty-eight million, one hundred forty-eight thousand, seven hundred seventy-four".