3405410521 has 24 divisors (see below), whose sum is σ = 3761815680. Its totient is φ = 3077459616.

The previous prime is 3405410509. The next prime is 3405410581. The reversal of 3405410521 is 1250145043.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-3405410521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3405410581) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 718666 + ... + 723388.

It is an arithmetic number, because the mean of its divisors is an integer number (156742320).

Almost surely, 2^3405410521 is an apocalyptic number.

It is an amenable number.

3405410521 is a deficient number, since it is larger than the sum of its proper divisors (356405159).

3405410521 is a wasteful number, since it uses less digits than its factorization.

3405410521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4845 (or 4822 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 3405410521 is about 58355.8953405738. The cubic root of 3405410521 is about 1504.4917981105.

Adding to 3405410521 its reverse (1250145043), we get a palindrome (4655555564).

The spelling of 3405410521 in words is "three billion, four hundred five million, four hundred ten thousand, five hundred twenty-one".