45730 has 16 divisors (see below), whose sum is σ = 87480. Its totient is φ = 17152.

The previous prime is 45707. The next prime is 45737. The reversal of 45730 is 3754.

It can be written as a sum of positive squares in 4 ways, for example, as 32041 + 13689 = 179^2 + 117^2 .

It is an Ulam number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 45698 and 45707.

It is not an unprimeable number, because it can be changed into a prime (45737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36 + ... + 304.

2⁴⁵⁷³⁰ is an apocalyptic number.

45730 is a deficient number, since it is larger than the sum of its proper divisors (41750).

45730 is a wasteful number, since it uses less digits than its factorization.

45730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 45730 is about 213.8457387932. The cubic root of 45730 is about 35.7602379924.

The spelling of 45730 in words is "forty-five thousand, seven hundred thirty".