3505420 has 24 divisors (see below), whose sum is σ = 7502544. Its totient is φ = 1375296.

The previous prime is 3505409. The next prime is 3505421. The reversal of 3505420 is 245053.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3505421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594 + ... + 2713.

It is an arithmetic number, because the mean of its divisors is an integer number (312606).

Almost surely, 2^3505420 is an apocalyptic number.

It is an amenable number.

3505420 is an abundant number, since it is smaller than the sum of its proper divisors (3997124).

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

3505420 is a wasteful number, since it uses less digits than its factorization.

3505420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3369 (or 3367 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 3505420 is about 1872.2766889539. The cubic root of 3505420 is about 151.9077810886.

The spelling of 3505420 in words is "three million, five hundred five thousand, four hundred twenty".