306949056 has 56 divisors (see below), whose sum is σ = 816918864. Its totient is φ = 101713920.

The previous prime is 306949051. The next prime is 306949063. The reversal of 306949056 is 650949603.

It is a super-2 number, since 2×306949056² = 188435445958582272, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 306948999 and 306949017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306949051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28596 + ... + 37836.

Almost surely, 2^306949056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 306949056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408459432).

306949056 is an abundant number, since it is smaller than the sum of its proper divisors (509969808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

306949056 is a wasteful number, since it uses less digits than its factorization.

306949056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9429 (or 9419 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 42.

The square root of 306949056 is about 17519.9616437936. The cubic root of 306949056 is about 674.5623544422.

It can be divided in two parts, 3069 and 49056, that added together give a palindrome (52125).

The spelling of 306949056 in words is "three hundred six million, nine hundred forty-nine thousand, fifty-six".