4088540 has 12 divisors (see below), whose sum is σ = 8585976. Its totient is φ = 1635408.

The previous prime is 4088533. The next prime is 4088543. The reversal of 4088540 is 458804.

4088540 = 300² + 301² + ... + 339².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4088543) by changing a digit.

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, 102194 + ... + 102233.

It is an arithmetic number, because the mean of its divisors is an integer number (715498).

Almost surely, 2^4088540 is an apocalyptic number.

It is an amenable number.

4088540 is an abundant number, since it is smaller than the sum of its proper divisors (4497436).

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

4088540 is a wasteful number, since it uses less digits than its factorization.

4088540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204436 (or 204434 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 4088540 is about 2022.0138476282. The cubic root of 4088540 is about 159.9028055530.

The spelling of 4088540 in words is "four million, eighty-eight thousand, five hundred forty".