305049867 has 16 divisors (see below), whose sum is σ = 423620352. Its totient is φ = 195078240.

The previous prime is 305049863. The next prime is 305049893. The reversal of 305049867 is 768940503.

It is a happy number.

It is not a de Polignac number, because 305049867 - 2² = 305049863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (305049863) 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 15 ways as a sum of consecutive naturals, for example, 11473 + ... + 27234.

It is an arithmetic number, because the mean of its divisors is an integer number (26476272).

Almost surely, 2^305049867 is an apocalyptic number.

305049867 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

305049867 is a deficient number, since it is larger than the sum of its proper divisors (118570485).

305049867 is a wasteful number, since it uses less digits than its factorization.

305049867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38818.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 305049867 is about 17465.6768262784. The cubic root of 305049867 is about 673.1682330290.

The spelling of 305049867 in words is "three hundred five million, forty-nine thousand, eight hundred sixty-seven".