730145216 has 28 divisors (see below), whose sum is σ = 1451015640. Its totient is φ = 364535040.

The previous prime is 730145183. The next prime is 730145347. The reversal of 730145216 is 612541037.

It is a super-2 number, since 2×730145216² = 1066224072895373312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 37331 + ... + 53421.

Almost surely, 2^730145216 is an apocalyptic number.

It is an amenable number.

730145216 is a deficient number, since it is larger than the sum of its proper divisors (720870424).

730145216 is a wasteful number, since it uses less digits than its factorization.

730145216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16812 (or 16802 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 730145216 is about 27021.1993812266. The cubic root of 730145216 is about 900.4710357341.

The spelling of 730145216 in words is "seven hundred thirty million, one hundred forty-five thousand, two hundred sixteen".