720424365 has 16 divisors (see below), whose sum is σ = 1179486528. Its totient is φ = 375290496.

The previous prime is 720424363. The next prime is 720424379. The reversal of 720424365 is 563424027.

It is not a de Polignac number, because 720424365 - 2¹ = 720424363 is a prime.

It is a super-2 number, since 2×720424365² = 1038022531371306450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720424363) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 557824 + ... + 559113.

It is an arithmetic number, because the mean of its divisors is an integer number (73717908).

Almost surely, 2^720424365 is an apocalyptic number.

It is an amenable number.

720424365 is a deficient number, since it is larger than the sum of its proper divisors (459062163).

720424365 is a wasteful number, since it uses less digits than its factorization.

720424365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116988.

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 720424365 is about 26840.7221400617. The cubic root of 720424365 is about 896.4570028132.

The spelling of 720424365 in words is "seven hundred twenty million, four hundred twenty-four thousand, three hundred sixty-five".