4235540 has 12 divisors (see below), whose sum is σ = 8894676. Its totient is φ = 1694208.

The previous prime is 4235531. The next prime is 4235549. The reversal of 4235540 is 455324.

It is an interprime number because it is at equal distance from previous prime (4235531) and next prime (4235549).

It can be written as a sum of positive squares in 2 ways, for example, as 2353156 + 1882384 = 1534^2 + 1372^2 .

It is a super-3 number, since 3×4235540³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4235549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105869 + ... + 105908.

It is an arithmetic number, because the mean of its divisors is an integer number (741223).

Almost surely, 2^4235540 is an apocalyptic number.

It is an amenable number.

4235540 is an abundant number, since it is smaller than the sum of its proper divisors (4659136).

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

4235540 is a wasteful number, since it uses less digits than its factorization.

4235540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211786 (or 211784 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 4235540 is about 2058.0427595169. The cubic root of 4235540 is about 161.7966762804.

The spelling of 4235540 in words is "four million, two hundred thirty-five thousand, five hundred forty".