305440101 has 6 divisors (see below), whose sum is σ = 441191270. Its totient is φ = 203626728.

The previous prime is 305440087. The next prime is 305440141. The reversal of 305440101 is 101044503.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 298391076 + 7049025 = 17274^2 + 2655^2 .

It is not a de Polignac number, because 305440101 - 2¹³ = 305431909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305440141) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 16968886 + ... + 16968903.

Almost surely, 2^305440101 is an apocalyptic number.

It is an amenable number.

305440101 is a deficient number, since it is larger than the sum of its proper divisors (135751169).

305440101 is a wasteful number, since it uses less digits than its factorization.

305440101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33937795 (or 33937792 counting only the distinct ones).

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

The square root of 305440101 is about 17476.8447095006. The cubic root of 305440101 is about 673.4551601009.

Adding to 305440101 its reverse (101044503), we get a palindrome (406484604).

The spelling of 305440101 in words is "three hundred five million, four hundred forty thousand, one hundred one".