4385745 has 120 divisors (see below), whose sum is σ = 10428264. Its totient is φ = 1741824.

The previous prime is 4385743. The next prime is 4385783. The reversal of 4385745 is 5475834.

4385745 = T₅₃ + T₅₄ + ... + T₂₉₇.

4385745 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 321489 + 4064256 = 567^2 + 2016^2 .

It is not a de Polignac number, because 4385745 - 2¹ = 4385743 is a prime.

It is a Curzon number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4385743) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 257977 + ... + 257993.

Almost surely, 2^4385745 is an apocalyptic number.

4385745 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4385745 is an abundant number, since it is smaller than the sum of its proper divisors (6042519).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4385745 is a wasteful number, since it uses less digits than its factorization.

4385745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61 (or 45 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 4385745 is about 2094.2170374629. The cubic root of 4385745 is about 163.6871016905.

The spelling of 4385745 in words is "four million, three hundred eighty-five thousand, seven hundred forty-five".