4534387728 has 80 divisors (see below), whose sum is σ = 12739976256. Its totient is φ = 1381363200.

The previous prime is 4534387721. The next prime is 4534387733. The reversal of 4534387728 is 8277834354.

It is not an unprimeable number, because it can be changed into a prime (4534387721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27051 + ... + 98997.

Almost surely, 2^4534387728 is an apocalyptic number.

4534387728 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4534387728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6369988128).

4534387728 is an abundant number, since it is smaller than the sum of its proper divisors (8205588528).

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

4534387728 is a wasteful number, since it uses less digits than its factorization.

4534387728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72072 (or 72066 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 51.

The square root of 4534387728 is about 67337.8625143388. The cubic root of 4534387728 is about 1655.1583566524.

The spelling of 4534387728 in words is "four billion, five hundred thirty-four million, three hundred eighty-seven thousand, seven hundred twenty-eight".