308729664 has 112 divisors (see below), whose sum is σ = 925007040. Its totient is φ = 100938240.

The previous prime is 308729657. The next prime is 308729671. The reversal of 308729664 is 466927803.

It is an interprime number because it is at equal distance from previous prime (308729657) and next prime (308729671).

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 15 ways as a sum of consecutive naturals, for example, 89899 + ... + 93269.

Almost surely, 2^308729664 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 308729664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (462503520).

308729664 is an abundant number, since it is smaller than the sum of its proper divisors (616277376).

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

308729664 is a wasteful number, since it uses less digits than its factorization.

308729664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3445 (or 3429 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 308729664 is about 17570.7047098288. The cubic root of 308729664 is about 675.8642165102.

The spelling of 308729664 in words is "three hundred eight million, seven hundred twenty-nine thousand, six hundred sixty-four".