3540006 has 24 divisors (see below), whose sum is σ = 7717320. Its totient is φ = 1172736.

The previous prime is 3539971. The next prime is 3540041. The reversal of 3540006 is 6000453.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3539971) and next prime (3540041).

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 2965 + ... + 3983.

It is an arithmetic number, because the mean of its divisors is an integer number (321555).

Almost surely, 2^3540006 is an apocalyptic number.

3540006 is an abundant number, since it is smaller than the sum of its proper divisors (4177314).

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

3540006 is a wasteful number, since it uses less digits than its factorization.

3540006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220 (or 1217 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 3540006 is about 1881.4903667040. The cubic root of 3540006 is about 152.4057430617.

Adding to 3540006 its reverse (6000453), we get a palindrome (9540459).

The spelling of 3540006 in words is "three million, five hundred forty thousand, six".