3540252 has 48 divisors (see below), whose sum is σ = 8773632. Its totient is φ = 1108800.

The previous prime is 3540247. The next prime is 3540259. The reversal of 3540252 is 2520453.

3540252 = T₂₃ + T₂₄ + ... + T₂₇₆.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3540259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27813 + ... + 27939.

It is an arithmetic number, because the mean of its divisors is an integer number (182784).

Almost surely, 2^3540252 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 3540252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4386816).

3540252 is an abundant number, since it is smaller than the sum of its proper divisors (5233380).

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

3540252 is a wasteful number, since it uses less digits than its factorization.

3540252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 3540252 is about 1881.5557392753. Note that the first 3 decimals coincide. The cubic root of 3540252 is about 152.4092732765.

The spelling of 3540252 in words is "three million, five hundred forty thousand, two hundred fifty-two".