308234940 has 48 divisors (see below), whose sum is σ = 929449248. Its totient is φ = 75873024.

The previous prime is 308234933. The next prime is 308234989. The reversal of 308234940 is 49432803.

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, 196807 + ... + 198366.

It is an arithmetic number, because the mean of its divisors is an integer number (19363526).

Almost surely, 2^308234940 is an apocalyptic number.

308234940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

308234940 is an abundant number, since it is smaller than the sum of its proper divisors (621214308).

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

308234940 is a wasteful number, since it uses less digits than its factorization.

308234940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395198 (or 395196 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 308234940 is about 17556.6209732967. The cubic root of 308234940 is about 675.5030105226.

The spelling of 308234940 in words is "three hundred eight million, two hundred thirty-four thousand, nine hundred forty".