3540820 has 24 divisors (see below), whose sum is σ = 7676928. Its totient is φ = 1370400.

The previous prime is 3540793. The next prime is 3540829. The reversal of 3540820 is 280453.

It is a junction number, because it is equal to n+sod(n) for n = 3540791 and 3540800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3540829) 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, 2236 + ... + 3475.

It is an arithmetic number, because the mean of its divisors is an integer number (319872).

Almost surely, 2^3540820 is an apocalyptic number.

It is an amenable number.

3540820 is an abundant number, since it is smaller than the sum of its proper divisors (4136108).

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

3540820 is a wasteful number, since it uses less digits than its factorization.

3540820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5751 (or 5749 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 3540820 is about 1881.7066721463. The cubic root of 3540820 is about 152.4174237168.

The spelling of 3540820 in words is "three million, five hundred forty thousand, eight hundred twenty".