305460012 has 192 divisors, whose sum is σ = 913780224. Its totient is φ = 77967360.

The previous prime is 305459989. The next prime is 305460013. The reversal of 305460012 is 210064503.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (305460013) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1079223 + ... + 1079505.

It is an arithmetic number, because the mean of its divisors is an integer number (4759272).

Almost surely, 2^305460012 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 305460012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (456890112).

305460012 is an abundant number, since it is smaller than the sum of its proper divisors (608320212).

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

305460012 is a wasteful number, since it uses less digits than its factorization.

305460012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368 (or 366 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 305460012 is about 17477.4143396556. The cubic root of 305460012 is about 673.4697934931.

The spelling of 305460012 in words is "three hundred five million, four hundred sixty thousand, twelve".