308385652 has 12 divisors (see below), whose sum is σ = 558284580. Its totient is φ = 148875776.

The previous prime is 308385643. The next prime is 308385673. The reversal of 308385652 is 256583803.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 54110736 + 254274916 = 7356^2 + 15946^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1329133 + ... + 1329364.

It is an arithmetic number, because the mean of its divisors is an integer number (46523715).

Almost surely, 2^308385652 is an apocalyptic number.

It is an amenable number.

308385652 is a deficient number, since it is larger than the sum of its proper divisors (249898928).

308385652 is a wasteful number, since it uses less digits than its factorization.

308385652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658530 (or 2658528 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 308385652 is about 17560.9126186540. The cubic root of 308385652 is about 675.6130887002.

The spelling of 308385652 in words is "three hundred eight million, three hundred eighty-five thousand, six hundred fifty-two".