728068614 has 128 divisors (see below), whose sum is σ = 1849236480. Its totient is φ = 186015744.

The previous prime is 728068591. The next prime is 728068637. The reversal of 728068614 is 416860827.

It is an interprime number because it is at equal distance from previous prime (728068591) and next prime (728068637).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3124642 + ... + 3124874.

It is an arithmetic number, because the mean of its divisors is an integer number (14447160).

Almost surely, 2^728068614 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 728068614, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (924618240).

728068614 is an abundant number, since it is smaller than the sum of its proper divisors (1121167866).

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

728068614 is a wasteful number, since it uses less digits than its factorization.

728068614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 728068614 is about 26982.7465985211. The cubic root of 728068614 is about 899.6165502326.

The spelling of 728068614 in words is "seven hundred twenty-eight million, sixty-eight thousand, six hundred fourteen".