3505408 has 18 divisors (see below), whose sum is σ = 6997634. Its totient is φ = 1752576.

The previous prime is 3505391. The next prime is 3505409. The reversal of 3505408 is 8045053.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3504384 + 1024 = 1872^2 + 32^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3505409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6591 + ... + 7102.

Almost surely, 2^3505408 is an apocalyptic number.

It is an amenable number.

3505408 is a deficient number, since it is larger than the sum of its proper divisors (3492226).

3505408 is an equidigital number, since it uses as much as digits as its factorization.

3505408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13709 (or 13695 counting only the distinct ones).

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

The square root of 3505408 is about 1872.2734842966. The cubic root of 3505408 is about 151.9076077479.

The spelling of 3505408 in words is "three million, five hundred five thousand, four hundred eight".