720682338 has 16 divisors (see below), whose sum is σ = 1476520416. Its totient is φ = 234368160.

The previous prime is 720682307. The next prime is 720682357. The reversal of 720682338 is 833286027.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 720682296 and 720682305.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1464556 + ... + 1465047.

It is an arithmetic number, because the mean of its divisors is an integer number (92282526).

Almost surely, 2^720682338 is an apocalyptic number.

720682338 is an abundant number, since it is smaller than the sum of its proper divisors (755838078).

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

720682338 is a wasteful number, since it uses less digits than its factorization.

720682338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2929649.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 720682338 is about 26845.5273369699. The cubic root of 720682338 is about 896.5639925799.

The spelling of 720682338 in words is "seven hundred twenty million, six hundred eighty-two thousand, three hundred thirty-eight".