306940063 has 8 divisors (see below), whose sum is σ = 321740496. Its totient is φ = 292488000.

The previous prime is 306940057. The next prime is 306940069. The reversal of 306940063 is 360049603.

It is an interprime number because it is at equal distance from previous prime (306940057) and next prime (306940069).

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

It is a cyclic number.

It is not a de Polignac number, because 306940063 - 2²⁵ = 273385631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306940069) 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, 85288 + ... + 88813.

It is an arithmetic number, because the mean of its divisors is an integer number (40217562).

Almost surely, 2^306940063 is an apocalyptic number.

306940063 is a deficient number, since it is larger than the sum of its proper divisors (14800433).

306940063 is a wasteful number, since it uses less digits than its factorization.

306940063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174185.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 306940063 is about 17519.7049918085. The cubic root of 306940063 is about 674.5557665971. Note that the first 3 decimals are identical.

Adding to 306940063 its reverse (360049603), we get a palindrome (666989666).

The spelling of 306940063 in words is "three hundred six million, nine hundred forty thousand, sixty-three".