303040249 has 16 divisors (see below), whose sum is σ = 343882368. Its totient is φ = 265427712.

The previous prime is 303040247. The next prime is 303040261. The reversal of 303040249 is 942040303.

It is a cyclic number.

It is not a de Polignac number, because 303040249 - 2¹ = 303040247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (303040247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3994 + ... + 24940.

It is an arithmetic number, because the mean of its divisors is an integer number (21492648).

Almost surely, 2^303040249 is an apocalyptic number.

It is an amenable number.

303040249 is a deficient number, since it is larger than the sum of its proper divisors (40842119).

303040249 is a wasteful number, since it uses less digits than its factorization.

303040249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21024.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 303040249 is about 17408.0512694558. The cubic root of 303040249 is about 671.6867346867.

The spelling of 303040249 in words is "three hundred three million, forty thousand, two hundred forty-nine".