306370049 has 4 divisors (see below), whose sum is σ = 306620160. Its totient is φ = 306119940.

The previous prime is 306370019. The next prime is 306370063. The reversal of 306370049 is 940073603.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 306370049 - 2²⁰ = 305321473 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 306369997 and 306370024.

It is not an unprimeable number, because it can be changed into a prime (306370019) 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, 123209 + ... + 125670.

It is an arithmetic number, because the mean of its divisors is an integer number (76655040).

Almost surely, 2^306370049 is an apocalyptic number.

It is an amenable number.

306370049 is a deficient number, since it is larger than the sum of its proper divisors (250111).

306370049 is a wasteful number, since it uses less digits than its factorization.

306370049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250110.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 306370049 is about 17503.4296353600. The cubic root of 306370049 is about 674.1379385547.

The spelling of 306370049 in words is "three hundred six million, three hundred seventy thousand, forty-nine".