303680073 has 8 divisors (see below), whose sum is σ = 410453728. Its totient is φ = 199679904.

The previous prime is 303680057. The next prime is 303680077. The reversal of 303680073 is 370086303.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 303680073 - 2⁴ = 303680057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 303680073.

It is not an unprimeable number, because it can be changed into a prime (303680077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 693115 + ... + 693552.

It is an arithmetic number, because the mean of its divisors is an integer number (51306716).

Almost surely, 2^303680073 is an apocalyptic number.

It is an amenable number.

303680073 is a deficient number, since it is larger than the sum of its proper divisors (106773655).

303680073 is a wasteful number, since it uses less digits than its factorization.

303680073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386743.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 303680073 is about 17426.4188231547. The cubic root of 303680073 is about 672.1591242897.

The spelling of 303680073 in words is "three hundred three million, six hundred eighty thousand, seventy-three".