3522440 has 32 divisors (see below), whose sum is σ = 8009280. Its totient is φ = 1394112.

The previous prime is 3522439. The next prime is 3522479. The reversal of 3522440 is 442253.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3869 + ... + 4691.

It is an arithmetic number, because the mean of its divisors is an integer number (250290).

Almost surely, 2^3522440 is an apocalyptic number.

It is an amenable number.

3522440 is an abundant number, since it is smaller than the sum of its proper divisors (4486840).

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

3522440 is a wasteful number, since it uses less digits than its factorization.

3522440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941 (or 937 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 3522440 is about 1876.8164534658. The cubic root of 3522440 is about 152.1532388122.

Adding to 3522440 its reverse (442253), we get a palindrome (3964693).

It can be divided in two parts, 3522 and 440, that multiplied together give a triangular number (1549680 = T₁₇₆₀).

The spelling of 3522440 in words is "three million, five hundred twenty-two thousand, four hundred forty".