1799228728 has 64 divisors (see below), whose sum is σ = 4066225920. Its totient is φ = 736243200.

The previous prime is 1799228689. The next prime is 1799228729. The reversal of 1799228728 is 8278229971.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1799228729) 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, 8263 + ... + 60553.

It is an arithmetic number, because the mean of its divisors is an integer number (63534780).

Almost surely, 2^1799228728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1799228728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2033112960).

1799228728 is an abundant number, since it is smaller than the sum of its proper divisors (2266997192).

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

1799228728 is a wasteful number, since it uses less digits than its factorization.

1799228728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52348 (or 52344 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 55.

The square root of 1799228728 is about 42417.3163696149. The cubic root of 1799228728 is about 1216.2666323640.

The spelling of 1799228728 in words is "one billion, seven hundred ninety-nine million, two hundred twenty-eight thousand, seven hundred twenty-eight".