3522820 has 24 divisors (see below), whose sum is σ = 8455104. Its totient is φ = 1207776.

The previous prime is 3522817. The next prime is 3522823. The reversal of 3522820 is 282253.

It is an interprime number because it is at equal distance from previous prime (3522817) and next prime (3522823).

It is a junction number, because it is equal to n+sod(n) for n = 3522791 and 3522800.

It is not an unprimeable number, because it can be changed into a prime (3522823) 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, 12442 + ... + 12721.

It is an arithmetic number, because the mean of its divisors is an integer number (352296).

Almost surely, 2^3522820 is an apocalyptic number.

It is an amenable number.

3522820 is an abundant number, since it is smaller than the sum of its proper divisors (4932284).

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

3522820 is a wasteful number, since it uses less digits than its factorization.

3522820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25179 (or 25177 counting only the distinct ones).

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

The square root of 3522820 is about 1876.9176859948. The cubic root of 3522820 is about 152.1587100340.

The spelling of 3522820 in words is "three million, five hundred twenty-two thousand, eight hundred twenty".