305242704 has 180 divisors, whose sum is σ = 952674268. Its totient is φ = 90685440.

The previous prime is 305242699. The next prime is 305242723. The reversal of 305242704 is 407242503.

It can be written as a sum of positive squares in 6 ways, for example, as 152473104 + 152769600 = 12348^2 + 12360^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3146784 + ... + 3146880.

Almost surely, 2^305242704 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 305242704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (476337134).

305242704 is an abundant number, since it is smaller than the sum of its proper divisors (647431564).

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

305242704 is a wasteful number, since it uses less digits than its factorization.

305242704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 305242704 is about 17471.1964100917. The cubic root of 305242704 is about 673.3100507149.

The spelling of 305242704 in words is "three hundred five million, two hundred forty-two thousand, seven hundred four".