4253445 has 48 divisors (see below), whose sum is σ = 8809920. Its totient is φ = 1941408.

The previous prime is 4253443. The next prime is 4253449. The reversal of 4253445 is 5443524.

It is not a de Polignac number, because 4253445 - 2¹ = 4253443 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 4² + 2 + 5 + 3¹⁰ + 4³ + 4¹¹ + 5 .

4253445 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4253443) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6294 + ... + 6936.

It is an arithmetic number, because the mean of its divisors is an integer number (183540).

Almost surely, 2^4253445 is an apocalyptic number.

4253445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4253445 is an abundant number, since it is smaller than the sum of its proper divisors (4556475).

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

4253445 is a wasteful number, since it uses less digits than its factorization.

4253445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671 (or 658 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 4253445 is about 2062.3881787869. The cubic root of 4253445 is about 162.0243447639.

Adding to 4253445 its reverse (5443524), we get a palindrome (9696969).

The spelling of 4253445 in words is "four million, two hundred fifty-three thousand, four hundred forty-five".