303223728 has 40 divisors (see below), whose sum is σ = 786150576. Its totient is φ = 100710400.

The previous prime is 303223699. The next prime is 303223729. The reversal of 303223728 is 827322303.

It is a junction number, because it is equal to n+sod(n) for n = 303223695 and 303223704.

It is not an unprimeable number, because it can be changed into a prime (303223729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2248 + ... + 24728.

Almost surely, 2^303223728 is an apocalyptic number.

It is an amenable number.

303223728 is an abundant number, since it is smaller than the sum of its proper divisors (482926848).

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

303223728 is a wasteful number, since it uses less digits than its factorization.

303223728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22773 (or 22767 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 303223728 is about 17413.3204185761. The cubic root of 303223728 is about 671.8222673393.

The spelling of 303223728 in words is "three hundred three million, two hundred twenty-three thousand, seven hundred twenty-eight".