304140105 has 24 divisors (see below), whose sum is σ = 532618632. Its totient is φ = 160533504.

The previous prime is 304140071. The next prime is 304140131. The reversal of 304140105 is 501041403.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 962361 + 303177744 = 981^2 + 17412^2 .

It is not a de Polignac number, because 304140105 - 2⁶ = 304140041 is a prime.

It is a super-2 number, since 2×304140105² = 185002406938822050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30474 + ... + 39203.

It is an arithmetic number, because the mean of its divisors is an integer number (22192443).

Almost surely, 2^304140105 is an apocalyptic number.

It is an amenable number.

304140105 is a deficient number, since it is larger than the sum of its proper divisors (228478527).

304140105 is a wasteful number, since it uses less digits than its factorization.

304140105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69785 (or 69782 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 304140105 is about 17439.6130977726. The cubic root of 304140105 is about 672.4983614522.

Adding to 304140105 its reverse (501041403), we get a palindrome (805181508).

The spelling of 304140105 in words is "three hundred four million, one hundred forty thousand, one hundred five".