720725042 has 16 divisors (see below), whose sum is σ = 1088439552. Its totient is φ = 357920640.

The previous prime is 720725041. The next prime is 720725051. The reversal of 720725042 is 240527027.

720725042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 720724996 and 720725014.

It is not an unprimeable number, because it can be changed into a prime (720725041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189443 + ... + 193209.

It is an arithmetic number, because the mean of its divisors is an integer number (68027472).

Almost surely, 2^720725042 is an apocalyptic number.

720725042 is a deficient number, since it is larger than the sum of its proper divisors (367714510).

720725042 is a wasteful number, since it uses less digits than its factorization.

720725042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4393.

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 720725042 is about 26846.3226904543. The cubic root of 720725042 is about 896.5817008500.

The spelling of 720725042 in words is "seven hundred twenty million, seven hundred twenty-five thousand, forty-two".