305413040 has 40 divisors (see below), whose sum is σ = 713726640. Its totient is φ = 121538816.

The previous prime is 305413039. The next prime is 305413057. The reversal of 305413040 is 40314503.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6071 + ... + 25449.

It is an arithmetic number, because the mean of its divisors is an integer number (17843166).

Almost surely, 2^305413040 is an apocalyptic number.

It is an amenable number.

305413040 is an abundant number, since it is smaller than the sum of its proper divisors (408313600).

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

305413040 is a wasteful number, since it uses less digits than its factorization.

305413040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19589 (or 19583 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 305413040 is about 17476.0704965390. The cubic root of 305413040 is about 673.4352708676.

Adding to 305413040 its reverse (40314503), we get a palindrome (345727543).

The spelling of 305413040 in words is "three hundred five million, four hundred thirteen thousand, forty".