720197330 has 16 divisors (see below), whose sum is σ = 1298113344. Its totient is φ = 287688240.

The previous prime is 720197329. The next prime is 720197351. The reversal of 720197330 is 33791027.

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, 41036 + ... + 55895.

It is an arithmetic number, because the mean of its divisors is an integer number (81132084).

Almost surely, 2^720197330 is an apocalyptic number.

720197330 is a deficient number, since it is larger than the sum of its proper divisors (577916014).

720197330 is a wasteful number, since it uses less digits than its factorization.

720197330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97681.

The product of its (nonzero) digits is 7938, while the sum is 32.

The square root of 720197330 is about 26836.4925055418. The cubic root of 720197330 is about 896.3628229062.

The spelling of 720197330 in words is "seven hundred twenty million, one hundred ninety-seven thousand, three hundred thirty".