303489912 has 64 divisors (see below), whose sum is σ = 835810560. Its totient is φ = 91065600.

The previous prime is 303489889. The next prime is 303489961. The reversal of 303489912 is 219984303.

It is a super-2 number, since 2×303489912² = 184212253371535488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21612 + ... + 32772.

It is an arithmetic number, because the mean of its divisors is an integer number (13059540).

Almost surely, 2^303489912 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 303489912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (417905280).

303489912 is an abundant number, since it is smaller than the sum of its proper divisors (532320648).

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

303489912 is a wasteful number, since it uses less digits than its factorization.

303489912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11284 (or 11280 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 303489912 is about 17420.9618563385. The cubic root of 303489912 is about 672.0187955344.

The spelling of 303489912 in words is "three hundred three million, four hundred eighty-nine thousand, nine hundred twelve".