3522220424 has 8 divisors (see below), whose sum is σ = 6604163310. Its totient is φ = 1761110208.

The previous prime is 3522220423. The next prime is 3522220487. The reversal of 3522220424 is 4240222253.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3059196100 + 463024324 = 55310^2 + 21518^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 3522220393 and 3522220402.

It is not an unprimeable number, because it can be changed into a prime (3522220423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220138769 + ... + 220138784.

Almost surely, 2^3522220424 is an apocalyptic number.

It is an amenable number.

3522220424 is a deficient number, since it is larger than the sum of its proper divisors (3081942886).

3522220424 is a wasteful number, since it uses less digits than its factorization.

3522220424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440277559 (or 440277555 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 3522220424 is about 59348.2975661476. The cubic root of 3522220424 is about 1521.5007718804.

Adding to 3522220424 its reverse (4240222253), we get a palindrome (7762442677).

The spelling of 3522220424 in words is "three billion, five hundred twenty-two million, two hundred twenty thousand, four hundred twenty-four".