3449850421 has 4 divisors (see below), whose sum is σ = 3464915500. Its totient is φ = 3434785344.

The previous prime is 3449850403. The next prime is 3449850461. The reversal of 3449850421 is 1240589443.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2163552196 + 1286298225 = 46514^2 + 35865^2 .

It is a cyclic number.

It is not a de Polignac number, because 3449850421 - 2⁵ = 3449850389 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 (3449850461) 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, 7532196 + ... + 7532653.

It is an arithmetic number, because the mean of its divisors is an integer number (866228875).

Almost surely, 2^3449850421 is an apocalyptic number.

It is an amenable number.

3449850421 is a deficient number, since it is larger than the sum of its proper divisors (15065079).

3449850421 is a wasteful number, since it uses less digits than its factorization.

3449850421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15065078.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 3449850421 is about 58735.4273075458. The cubic root of 3449850421 is about 1511.0079700422.

The spelling of 3449850421 in words is "three billion, four hundred forty-nine million, eight hundred fifty thousand, four hundred twenty-one".