728404614 has 48 divisors (see below), whose sum is σ = 1816877088. Its totient is φ = 206591616.

The previous prime is 728404609. The next prime is 728404639. The reversal of 728404614 is 416404827.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3837 + ... + 38360.

It is an arithmetic number, because the mean of its divisors is an integer number (37851606).

Almost surely, 2^728404614 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 728404614, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (908438544).

728404614 is an abundant number, since it is smaller than the sum of its proper divisors (1088472474).

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

728404614 is a wasteful number, since it uses less digits than its factorization.

728404614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42349 (or 42346 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 728404614 is about 26988.9720812038. The cubic root of 728404614 is about 899.7549184524.

The spelling of 728404614 in words is "seven hundred twenty-eight million, four hundred four thousand, six hundred fourteen".