720338941 has 4 divisors (see below), whose sum is σ = 823244512. Its totient is φ = 617433372.

The previous prime is 720338933. The next prime is 720338947. The reversal of 720338941 is 149833027.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 149833027 = 43 ⋅3484489.

It is a cyclic number.

It is not a de Polignac number, because 720338941 - 2³ = 720338933 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 720338941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720338947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51452775 + ... + 51452788.

It is an arithmetic number, because the mean of its divisors is an integer number (205811128).

Almost surely, 2^720338941 is an apocalyptic number.

It is an amenable number.

720338941 is a deficient number, since it is larger than the sum of its proper divisors (102905571).

720338941 is a wasteful number, since it uses less digits than its factorization.

720338941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102905570.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 720338941 is about 26839.1307795167. The cubic root of 720338941 is about 896.4215690820.

The spelling of 720338941 in words is "seven hundred twenty million, three hundred thirty-eight thousand, nine hundred forty-one".