728293468 has 18 divisors (see below), whose sum is σ = 1482597816. Its totient is φ = 312125688.

The previous prime is 728293453. The next prime is 728293469. The reversal of 728293468 is 864392827.

It is a super-2 number, since 2×728293468² = 1060822751062934048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728293469) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1857696 + ... + 1858087.

Almost surely, 2^728293468 is an apocalyptic number.

It is an amenable number.

728293468 is an abundant number, since it is smaller than the sum of its proper divisors (754304348).

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

728293468 is a wasteful number, since it uses less digits than its factorization.

728293468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3715801 (or 3715792 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 49.

The square root of 728293468 is about 26986.9129023681. The cubic root of 728293468 is about 899.7091521090.

The spelling of 728293468 in words is "seven hundred twenty-eight million, two hundred ninety-three thousand, four hundred sixty-eight".