3504540 has 48 divisors (see below), whose sum is σ = 10569888. Its totient is φ = 862464.

The previous prime is 3504539. The next prime is 3504551. The reversal of 3504540 is 454053.

It is a happy number.

It is a super-2 number, since 2×3504540² = 24563601223200, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1467 + ... + 3026.

It is an arithmetic number, because the mean of its divisors is an integer number (220206).

Almost surely, 2^3504540 is an apocalyptic number.

3504540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3504540 is an abundant number, since it is smaller than the sum of its proper divisors (7065348).

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

3504540 is a wasteful number, since it uses less digits than its factorization.

3504540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4518 (or 4516 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 3504540 is about 1872.0416662030. The cubic root of 3504540 is about 151.8950683908.

Adding to 3504540 its reverse (454053), we get a palindrome (3958593).

The spelling of 3504540 in words is "three million, five hundred four thousand, five hundred forty".