3506040 has 48 divisors (see below), whose sum is σ = 11395800. Its totient is φ = 934848.

The previous prime is 3506039. The next prime is 3506047. The reversal of 3506040 is 406053.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3506047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4510 + ... + 5229.

Almost surely, 2^3506040 is an apocalyptic number.

3506040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3506040 is an abundant number, since it is smaller than the sum of its proper divisors (7889760).

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

3506040 is a wasteful number, since it uses less digits than its factorization.

3506040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9756 (or 9749 counting only the distinct ones).

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

The square root of 3506040 is about 1872.4422554514. The cubic root of 3506040 is about 151.9167364845.

The spelling of 3506040 in words is "three million, five hundred six thousand, forty".