730243525431 has 64 divisors (see below), whose sum is σ = 1166258995200. Its totient is φ = 397380339840.

The previous prime is 730243525423. The next prime is 730243525439. The reversal of 730243525431 is 134525342037.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (730243525423) and next prime (730243525439).

It is not a de Polignac number, because 730243525431 - 2³ = 730243525423 is a prime.

It is a super-2 number, since 2×730243525431² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 730243525431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730243525439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 152163370 + ... + 152168168.

It is an arithmetic number, because the mean of its divisors is an integer number (18222796800).

Almost surely, 2^730243525431 is an apocalyptic number.

730243525431 is a deficient number, since it is larger than the sum of its proper divisors (436015469769).

730243525431 is a wasteful number, since it uses less digits than its factorization.

730243525431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6156.

The product of its (nonzero) digits is 302400, while the sum is 39.

Adding to 730243525431 its reverse (134525342037), we get a palindrome (864768867468).

The spelling of 730243525431 in words is "seven hundred thirty billion, two hundred forty-three million, five hundred twenty-five thousand, four hundred thirty-one".