4305645 has 24 divisors (see below), whose sum is σ = 7521696. Its totient is φ = 2278368.

The previous prime is 4305629. The next prime is 4305649. The reversal of 4305645 is 5465034.

4305645 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

4305645 is a nontrivial binomial coefficient, being equal to C(2935, 2).

It is not a de Polignac number, because 4305645 - 2⁴ = 4305629 is a prime.

It is a super-3 number, since 3×4305645³ (a number of 21 digits) contains 333 as substring.

4305645 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4305649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7042 + ... + 7628.

It is an arithmetic number, because the mean of its divisors is an integer number (313404).

Almost surely, 2^4305645 is an apocalyptic number.

4305645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4305645 is the 2934-th triangular number.

It is an amenable number.

4305645 is a deficient number, since it is larger than the sum of its proper divisors (3216051).

4305645 is a wasteful number, since it uses less digits than its factorization.

4305645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761 (or 758 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 4305645 is about 2075.0048192715. The cubic root of 4305645 is about 162.6844611420.

It can be divided in two parts, 4305 and 645, that added together give a triangular number (4950 = T₉₉).

The spelling of 4305645 in words is "four million, three hundred five thousand, six hundred forty-five".