307998336 has 128 divisors (see below), whose sum is σ = 874621440. Its totient is φ = 95800320.

The previous prime is 307998307. The next prime is 307998343. The reversal of 307998336 is 633899703.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

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 15 ways as a sum of consecutive naturals, for example, 379371 + ... + 380181.

It is an arithmetic number, because the mean of its divisors is an integer number (6832980).

Almost surely, 2^307998336 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 307998336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (437310720).

307998336 is an abundant number, since it is smaller than the sum of its proper divisors (566623104).

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

307998336 is a wasteful number, since it uses less digits than its factorization.

307998336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894 (or 882 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 48.

The square root of 307998336 is about 17549.8813671204. The cubic root of 307998336 is about 675.3301254861.

The spelling of 307998336 in words is "three hundred seven million, nine hundred ninety-eight thousand, three hundred thirty-six".