308423844 has 27 divisors (see below), whose sum is σ = 779893387. Its totient is φ = 102772824.

The previous prime is 308423839. The next prime is 308423849. The reversal of 308423844 is 448324803.

The square root of 308423844 is 17562.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (308423839) and next prime (308423849).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 308423799 and 308423808.

It is not an unprimeable number, because it can be changed into a prime (308423849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 103909 + ... + 106835.

Almost surely, 2^308423844 is an apocalyptic number.

308423844 is the 17562-nd square number.

It is an amenable number.

308423844 is an abundant number, since it is smaller than the sum of its proper divisors (471469543).

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

308423844 is an equidigital number, since it uses as much as digits as its factorization.

308423844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5864 (or 2932 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The cubic root of 308423844 is about 675.6409779679.

Multiplying 308423844 by its sum of digits (36), we get a square (11103258384 = 105372²).

308423844 divided by its sum of digits (36) gives a square (8567329 = 2927²).

The spelling of 308423844 in words is "three hundred eight million, four hundred twenty-three thousand, eight hundred forty-four".