3540138 has 32 divisors (see below), whose sum is σ = 8355840. Its totient is φ = 978480.

The previous prime is 3540133. The next prime is 3540139. The reversal of 3540138 is 8310453.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3540133) 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, 58 + ... + 2661.

It is an arithmetic number, because the mean of its divisors is an integer number (261120).

Almost surely, 2^3540138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3540138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4177920).

3540138 is an abundant number, since it is smaller than the sum of its proper divisors (4815702).

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

3540138 is a wasteful number, since it uses less digits than its factorization.

3540138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2762.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 3540138 is about 1881.5254449515. The cubic root of 3540138 is about 152.4076373436.

The spelling of 3540138 in words is "three million, five hundred forty thousand, one hundred thirty-eight".