3442403421 has 16 divisors (see below), whose sum is σ = 5104670400. Its totient is φ = 2292769584.

The previous prime is 3442403383. The next prime is 3442403431. The reversal of 3442403421 is 1243042443.

It is a happy number.

It is not a de Polignac number, because 3442403421 - 2¹⁸ = 3442141277 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3442403431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30771 + ... + 88496.

It is an arithmetic number, because the mean of its divisors is an integer number (319041900).

Almost surely, 2^3442403421 is an apocalyptic number.

It is an amenable number.

3442403421 is a deficient number, since it is larger than the sum of its proper divisors (1662266979).

3442403421 is a wasteful number, since it uses less digits than its factorization.

3442403421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120345 (or 120339 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 3442403421 is about 58671.9986109217. The cubic root of 3442403421 is about 1509.9199438574.

Adding to 3442403421 its reverse (1243042443), we get a palindrome (4685445864).

The spelling of 3442403421 in words is "three billion, four hundred forty-two million, four hundred three thousand, four hundred twenty-one".