308296436 has 36 divisors (see below), whose sum is σ = 629435268. Its totient is φ = 131741568.

The previous prime is 308296427. The next prime is 308296441. The reversal of 308296436 is 634692803.

It can be written as a sum of positive squares in 2 ways, for example, as 226502500 + 81793936 = 15050^2 + 9044^2 .

It is a junction number, because it is equal to n+sod(n) for n = 308296393 and 308296402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71000 + ... + 75216.

It is an arithmetic number, because the mean of its divisors is an integer number (17484313).

Almost surely, 2^308296436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 308296436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314717634).

308296436 is an abundant number, since it is smaller than the sum of its proper divisors (321138832).

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

308296436 is a wasteful number, since it uses less digits than its factorization.

308296436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4608 (or 4599 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 308296436 is about 17558.3722480189. The cubic root of 308296436 is about 675.5479307717.

The spelling of 308296436 in words is "three hundred eight million, two hundred ninety-six thousand, four hundred thirty-six".