305090064 has 100 divisors (see below), whose sum is σ = 889437120. Its totient is φ = 100958400.

The previous prime is 305090057. The next prime is 305090077. The reversal of 305090064 is 460090503.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 194917 + ... + 196475.

Almost surely, 2^305090064 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 305090064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (444718560).

305090064 is an abundant number, since it is smaller than the sum of its proper divisors (584347056).

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

305090064 is a wasteful number, since it uses less digits than its factorization.

305090064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730 (or 1715 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 305090064 is about 17466.8275310659. The cubic root of 305090064 is about 673.1977999490.

The spelling of 305090064 in words is "three hundred five million, ninety thousand, sixty-four".