730415645 has 16 divisors (see below), whose sum is σ = 906451968. Its totient is φ = 564433920.

The previous prime is 730415639. The next prime is 730415657. The reversal of 730415645 is 546514037.

It is not a de Polignac number, because 730415645 - 2¹⁰ = 730414621 is a prime.

It is a super-3 number, since 3×730415645³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85352 + ... + 93518.

It is an arithmetic number, because the mean of its divisors is an integer number (56653248).

Almost surely, 2^730415645 is an apocalyptic number.

It is an amenable number.

730415645 is a deficient number, since it is larger than the sum of its proper divisors (176036323).

730415645 is a wasteful number, since it uses less digits than its factorization.

730415645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8780.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 730415645 is about 27026.2029334496. The cubic root of 730415645 is about 900.5821932676.

The spelling of 730415645 in words is "seven hundred thirty million, four hundred fifteen thousand, six hundred forty-five".