3505530 has 32 divisors (see below), whose sum is σ = 9615744. Its totient is φ = 801216.

The previous prime is 3505529. The next prime is 3505531. The reversal of 3505530 is 355053.

It is an interprime number because it is at equal distance from previous prime (3505529) and next prime (3505531).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 3505497 and 3505506.

It is not an unprimeable number, because it can be changed into a prime (3505531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8137 + ... + 8556.

It is an arithmetic number, because the mean of its divisors is an integer number (300492).

Almost surely, 2^3505530 is an apocalyptic number.

3505530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3505530 is an abundant number, since it is smaller than the sum of its proper divisors (6110214).

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

3505530 is a wasteful number, since it uses less digits than its factorization.

3505530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16710.

The product of its (nonzero) digits is 1125, while the sum is 21.

The square root of 3505530 is about 1872.3060647234. The cubic root of 3505530 is about 151.9093700262.

The spelling of 3505530 in words is "three million, five hundred five thousand, five hundred thirty".