4236540 has 144 divisors (see below), whose sum is σ = 15168384. Its totient is φ = 873600.

The previous prime is 4236527. The next prime is 4236541. The reversal of 4236540 is 456324.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 4236540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4236541) 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, 32275 + ... + 32405.

It is an arithmetic number, because the mean of its divisors is an integer number (105336).

Almost surely, 2^4236540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4236540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7584192).

4236540 is an abundant number, since it is smaller than the sum of its proper divisors (10931844).

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

4236540 is a wasteful number, since it uses less digits than its factorization.

4236540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 4236540 is about 2058.2856944555. The cubic root of 4236540 is about 161.8094085368.

The spelling of 4236540 in words is "four million, two hundred thirty-six thousand, five hundred forty".