305028500 has 48 divisors (see below), whose sum is σ = 761359872. Its totient is φ = 104580000.

The previous prime is 305028491. The next prime is 305028509. The reversal of 305028500 is 5820503.

It is an interprime number because it is at equal distance from previous prime (305028491) and next prime (305028509).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305028509) 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, 40076 + ... + 47075.

It is an arithmetic number, because the mean of its divisors is an integer number (15861664).

Almost surely, 2^305028500 is an apocalyptic number.

It is an amenable number.

305028500 is an abundant number, since it is smaller than the sum of its proper divisors (456331372).

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

305028500 is a wasteful number, since it uses less digits than its factorization.

305028500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87177 (or 87165 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 305028500 is about 17465.0651301391. The cubic root of 305028500 is about 673.1525154660.

The spelling of 305028500 in words is "three hundred five million, twenty-eight thousand, five hundred".