3540340 has 24 divisors (see below), whose sum is σ = 7476840. Its totient is φ = 1408128.

The previous prime is 3540323. The next prime is 3540371. The reversal of 3540340 is 430453.

3540340 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 343396 + 3196944 = 586^2 + 1788^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4194 + ... + 4966.

It is an arithmetic number, because the mean of its divisors is an integer number (311535).

Almost surely, 2^3540340 is an apocalyptic number.

It is an amenable number.

3540340 is an abundant number, since it is smaller than the sum of its proper divisors (3936500).

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

3540340 is a wasteful number, since it uses less digits than its factorization.

3540340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011 (or 1009 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 3540340 is about 1881.5791240339. The cubic root of 3540340 is about 152.4105360778.

Adding to 3540340 its reverse (430453), we get a palindrome (3970793).

The spelling of 3540340 in words is "three million, five hundred forty thousand, three hundred forty".