320699934 has 48 divisors (see below), whose sum is σ = 752864112. Its totient is φ = 98267904.

The previous prime is 320699933. The next prime is 320699957. The reversal of 320699934 is 439996023.

It is a self number, because there is not a number n which added to its sum of digits gives 320699934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320699933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 972 + ... + 25344.

It is an arithmetic number, because the mean of its divisors is an integer number (15684669).

Almost surely, 2^320699934 is an apocalyptic number.

320699934 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 320699934, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376432056).

320699934 is an abundant number, since it is smaller than the sum of its proper divisors (432164178).

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

320699934 is a wasteful number, since it uses less digits than its factorization.

320699934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24441 (or 24438 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 45.

The square root of 320699934 is about 17908.0968838121. The cubic root of 320699934 is about 684.4887114738.

The spelling of 320699934 in words is "three hundred twenty million, six hundred ninety-nine thousand, nine hundred thirty-four".