730763240 has 32 divisors (see below), whose sum is σ = 1667381760. Its totient is φ = 288187200.

The previous prime is 730763239. The next prime is 730763249. The reversal of 730763240 is 42367037.

It is a junction number, because it is equal to n+sod(n) for n = 730763197 and 730763206.

It is not an unprimeable number, because it can be changed into a prime (730763249) 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 7 ways as a sum of consecutive naturals, for example, 125816 + ... + 131495.

It is an arithmetic number, because the mean of its divisors is an integer number (52105680).

Almost surely, 2^730763240 is an apocalyptic number.

It is an amenable number.

730763240 is an abundant number, since it is smaller than the sum of its proper divisors (936618520).

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

730763240 is a wasteful number, since it uses less digits than its factorization.

730763240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257393 (or 257389 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 32.

The square root of 730763240 is about 27032.6328721418. The cubic root of 730763240 is about 900.7250289375.

The spelling of 730763240 in words is "seven hundred thirty million, seven hundred sixty-three thousand, two hundred forty".