306944493 has 8 divisors (see below), whose sum is σ = 409360128. Its totient is φ = 204579264.

The previous prime is 306944479. The next prime is 306944549. The reversal of 306944493 is 394449603.

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

It is not a de Polignac number, because 306944493 - 2²⁰ = 305895917 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306944413) 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, 5205 + ... + 25317.

It is an arithmetic number, because the mean of its divisors is an integer number (51170016).

Almost surely, 2^306944493 is an apocalyptic number.

It is an amenable number.

306944493 is a deficient number, since it is larger than the sum of its proper divisors (102415635).

306944493 is a wasteful number, since it uses less digits than its factorization.

306944493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25203.

The product of its (nonzero) digits is 279936, while the sum is 42.

The square root of 306944493 is about 17519.8314204218. The cubic root of 306944493 is about 674.5590118210.

The spelling of 306944493 in words is "three hundred six million, nine hundred forty-four thousand, four hundred ninety-three".