720942 has 8 divisors (see below), whose sum is σ = 1441896. Its totient is φ = 240312.

The previous prime is 720931. The next prime is 720943. The reversal of 720942 is 249027.

It is a sphenic number, since it is the product of 3 distinct primes.

720942 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60073 + ... + 60084.

It is an arithmetic number, because the mean of its divisors is an integer number (180237).

2⁷²⁰⁹⁴² is an apocalyptic number.

720942 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

720942 is a wasteful number, since it uses less digits than its factorization.

720942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120162.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 720942 is about 849.0830348087. The cubic root of 720942 is about 89.6671657050.

Adding to 720942 its reverse (249027), we get a palindrome (969969).

The spelling of 720942 in words is "seven hundred twenty thousand, nine hundred forty-two".