24730645 has 4 divisors (see below), whose sum is σ = 29676780. Its totient is φ = 19784512.

The previous prime is 24730627. The next prime is 24730661. The reversal of 24730645 is 54603742.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54603742 = 2 ⋅27301871.

It can be written as a sum of positive squares in 2 ways, for example, as 4498641 + 20232004 = 2121^2 + 4498^2 .

It is a cyclic number.

It is not a de Polignac number, because 24730645 - 2⁵ = 24730613 is a prime.

It is a super-2 number, since 2×24730645² = 1223209604232050, 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2473060 + ... + 2473069.

It is an arithmetic number, because the mean of its divisors is an integer number (7419195).

Almost surely, 2^24730645 is an apocalyptic number.

It is an amenable number.

24730645 is a deficient number, since it is larger than the sum of its proper divisors (4946135).

24730645 is an equidigital number, since it uses as much as digits as its factorization.

24730645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4946134.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 24730645 is about 4972.9915543866. The cubic root of 24730645 is about 291.3478479096.

The spelling of 24730645 in words is "twenty-four million, seven hundred thirty thousand, six hundred forty-five".