305401312 has 12 divisors (see below), whose sum is σ = 601258896. Its totient is φ = 152700640.

The previous prime is 305401303. The next prime is 305401321. The reversal of 305401312 is 213104503.

It is an interprime number because it is at equal distance from previous prime (305401303) and next prime (305401321).

It is a super-2 number, since 2×305401312² = 186539922742642688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 305401312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4771864 + ... + 4771927.

It is an arithmetic number, because the mean of its divisors is an integer number (50104908).

Almost surely, 2^305401312 is an apocalyptic number.

305401312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

305401312 is a deficient number, since it is larger than the sum of its proper divisors (295857584).

305401312 is an equidigital number, since it uses as much as digits as its factorization.

305401312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9543801 (or 9543793 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 305401312 is about 17475.7349487797. The cubic root of 305401312 is about 673.4266506834.

Adding to 305401312 its reverse (213104503), we get a palindrome (518505815).

The spelling of 305401312 in words is "three hundred five million, four hundred one thousand, three hundred twelve".