306940307149 has 24 divisors (see below), whose sum is σ = 366761675520. Its totient is φ = 255940213536.

The previous prime is 306940307143. The next prime is 306940307159. The reversal of 306940307149 is 941703049603.

It is not a de Polignac number, because 306940307149 - 2⁵ = 306940307117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 306940307099 and 306940307108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306940307143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17829504 + ... + 17846710.

It is an arithmetic number, because the mean of its divisors is an integer number (15281736480).

Almost surely, 2^306940307149 is an apocalyptic number.

It is an amenable number.

306940307149 is a deficient number, since it is larger than the sum of its proper divisors (59821368371).

306940307149 is a wasteful number, since it uses less digits than its factorization.

306940307149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27097 (or 27090 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 46.

The spelling of 306940307149 in words is "three hundred six billion, nine hundred forty million, three hundred seven thousand, one hundred forty-nine".