305449049 has 4 divisors (see below), whose sum is σ = 306355764. Its totient is φ = 304542336.

The previous prime is 305449033. The next prime is 305449051. The reversal of 305449049 is 940944503.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 210250000 + 95199049 = 14500^2 + 9757^2 .

It is a cyclic number.

It is not a de Polignac number, because 305449049 - 2⁴ = 305449033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (305449019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452852 + ... + 453525.

It is an arithmetic number, because the mean of its divisors is an integer number (76588941).

Almost surely, 2^305449049 is an apocalyptic number.

It is an amenable number.

305449049 is a deficient number, since it is larger than the sum of its proper divisors (906715).

305449049 is an equidigital number, since it uses as much as digits as its factorization.

305449049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906714.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 305449049 is about 17477.1007034920. The cubic root of 305449049 is about 673.4617364235.

It can be divided in two parts, 30544 and 9049, that added together give a palindrome (39593).

The spelling of 305449049 in words is "three hundred five million, four hundred forty-nine thousand, forty-nine".