3522406421 has 4 divisors (see below), whose sum is σ = 3526605600. Its totient is φ = 3518207244.

The previous prime is 3522406379. The next prime is 3522406423. The reversal of 3522406421 is 1246042253.

3522406421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1246042253 = 163 ⋅7644431.

It is a cyclic number.

It is not a de Polignac number, because 3522406421 - 2¹⁸ = 3522144277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3522406423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2098331 + ... + 2100008.

It is an arithmetic number, because the mean of its divisors is an integer number (881651400).

Almost surely, 2^3522406421 is an apocalyptic number.

It is an amenable number.

3522406421 is a deficient number, since it is larger than the sum of its proper divisors (4199179).

3522406421 is an equidigital number, since it uses as much as digits as its factorization.

3522406421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4199178.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 3522406421 is about 59349.8645407047. The cubic root of 3522406421 is about 1521.5275532441.

Adding to 3522406421 its reverse (1246042253), we get a palindrome (4768448674).

The spelling of 3522406421 in words is "three billion, five hundred twenty-two million, four hundred six thousand, four hundred twenty-one".