308849240 has 64 divisors (see below), whose sum is σ = 795700800. Its totient is φ = 105689088.

The previous prime is 308849239. The next prime is 308849287. The reversal of 308849240 is 42948803.

It is a junction number, because it is equal to n+sod(n) for n = 308849194 and 308849203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272996 + ... + 274124.

It is an arithmetic number, because the mean of its divisors is an integer number (12432825).

Almost surely, 2^308849240 is an apocalyptic number.

It is an amenable number.

308849240 is an abundant number, since it is smaller than the sum of its proper divisors (486851560).

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

308849240 is a wasteful number, since it uses less digits than its factorization.

308849240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124 (or 2120 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 308849240 is about 17574.1070896931. The cubic root of 308849240 is about 675.9514629670.

The spelling of 308849240 in words is "three hundred eight million, eight hundred forty-nine thousand, two hundred forty".