305725000 has 96 divisors (see below), whose sum is σ = 819322560. Its totient is φ = 104760000.

The previous prime is 305724997. The next prime is 305725009. The reversal of 305725000 is 527503.

It is not an unprimeable number, because it can be changed into a prime (305725009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174127 + ... + 175873.

It is an arithmetic number, because the mean of its divisors is an integer number (8534610).

Almost surely, 2^305725000 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 305725000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (409661280).

305725000 is an abundant number, since it is smaller than the sum of its proper divisors (513597560).

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

305725000 is an equidigital number, since it uses as much as digits as its factorization.

305725000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785 (or 1761 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 22.

The square root of 305725000 is about 17484.9935659125. The cubic root of 305725000 is about 673.6644832791.

The spelling of 305725000 in words is "three hundred five million, seven hundred twenty-five thousand".