306349836 has 24 divisors (see below), whose sum is σ = 769802544. Its totient is φ = 94261440.

The previous prime is 306349831. The next prime is 306349847. The reversal of 306349836 is 638943603.

It is not an unprimeable number, because it can be changed into a prime (306349831) 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, 981735 + ... + 982046.

It is an arithmetic number, because the mean of its divisors is an integer number (32075106).

Almost surely, 2^306349836 is an apocalyptic number.

It is an amenable number.

306349836 is an abundant number, since it is smaller than the sum of its proper divisors (463452708).

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

306349836 is a wasteful number, since it uses less digits than its factorization.

306349836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963801 (or 1963799 counting only the distinct ones).

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

The square root of 306349836 is about 17502.8522247090. The cubic root of 306349836 is about 674.1231126388.

It can be divided in two parts, 30634 and 9836, that added together give a triangular number (40470 = T₂₈₄).

The spelling of 306349836 in words is "three hundred six million, three hundred forty-nine thousand, eight hundred thirty-six".