730933281 has 48 divisors (see below), whose sum is σ = 1201475520. Its totient is φ = 438721920.

The previous prime is 730933279. The next prime is 730933289. The reversal of 730933281 is 182339037.

It is a happy number.

It is not a de Polignac number, because 730933281 - 2¹ = 730933279 is a prime.

It is a super-2 number, since 2×730933281² = 1068526922546849922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (730933289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 185130 + ... + 189036.

It is an arithmetic number, because the mean of its divisors is an integer number (25030740).

Almost surely, 2^730933281 is an apocalyptic number.

It is an amenable number.

730933281 is a deficient number, since it is larger than the sum of its proper divisors (470542239).

730933281 is a wasteful number, since it uses less digits than its factorization.

730933281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3983 (or 3964 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 730933281 is about 27035.7777953585. Note that the first 4 decimals coincide. The cubic root of 730933281 is about 900.7948866325.

The spelling of 730933281 in words is "seven hundred thirty million, nine hundred thirty-three thousand, two hundred eighty-one".