730213745 has 16 divisors (see below), whose sum is σ = 898013952. Its totient is φ = 569708160.

The previous prime is 730213697. The next prime is 730213753. The reversal of 730213745 is 547312037.

730213745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-730213745 is a prime.

It is a super-2 number, since 2×730213745² = 1066424226773850050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161384 + ... + 165846.

It is an arithmetic number, because the mean of its divisors is an integer number (56125872).

Almost surely, 2^730213745 is an apocalyptic number.

It is an amenable number.

730213745 is a deficient number, since it is larger than the sum of its proper divisors (167800207).

730213745 is a wasteful number, since it uses less digits than its factorization.

730213745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5272.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 730213745 is about 27022.4674113968. The cubic root of 730213745 is about 900.4992065910.

The spelling of 730213745 in words is "seven hundred thirty million, two hundred thirteen thousand, seven hundred forty-five".