303939394 has 16 divisors (see below), whose sum is σ = 508923360. Its totient is φ = 134940960.

The previous prime is 303939359. The next prime is 303939421. The reversal of 303939394 is 493939303.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 303939394.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159699 + ... + 161590.

It is an arithmetic number, because the mean of its divisors is an integer number (31807710).

Almost surely, 2^303939394 is an apocalyptic number.

303939394 is a deficient number, since it is larger than the sum of its proper divisors (204983966).

303939394 is a wasteful number, since it uses less digits than its factorization.

303939394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321345.

The product of its (nonzero) digits is 236196, while the sum is 43.

The square root of 303939394 is about 17433.8576912857. The cubic root of 303939394 is about 672.3503950827.

The spelling of 303939394 in words is "three hundred three million, nine hundred thirty-nine thousand, three hundred ninety-four".