3540005 has 12 divisors (see below), whose sum is σ = 4941900. Its totient is φ = 2427264.

The previous prime is 3539971. The next prime is 3540041. The reversal of 3540005 is 5000453.

It can be written as a sum of positive squares in 2 ways, for example, as 2660161 + 879844 = 1631^2 + 938^2 .

It is not a de Polignac number, because 3540005 - 2¹⁶ = 3474469 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6980 + ... + 7469.

It is an arithmetic number, because the mean of its divisors is an integer number (411825).

Almost surely, 2^3540005 is an apocalyptic number.

3540005 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3540005 is a deficient number, since it is larger than the sum of its proper divisors (1401895).

3540005 is a wasteful number, since it uses less digits than its factorization.

3540005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14468 (or 14461 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 3540005 is about 1881.4901009572. The cubic root of 3540005 is about 152.4057287109.

Adding to 3540005 its reverse (5000453), we get a palindrome (8540458).

The spelling of 3540005 in words is "three million, five hundred forty thousand, five".