303049728 has 176 divisors, whose sum is σ = 914763360. Its totient is φ = 99090432.

The previous prime is 303049727. The next prime is 303049807. The reversal of 303049728 is 827940303.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 303049692 and 303049701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303049727) 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, 2681800 + ... + 2681912.

Almost surely, 2^303049728 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 303049728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (457381680).

303049728 is an abundant number, since it is smaller than the sum of its proper divisors (611713632).

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

303049728 is a wasteful number, since it uses less digits than its factorization.

303049728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 303049728 is about 17408.3235264054. The cubic root of 303049728 is about 671.6937379942.

The spelling of 303049728 in words is "three hundred three million, forty-nine thousand, seven hundred twenty-eight".