3331644421 has 8 divisors (see below), whose sum is σ = 3819099584. Its totient is φ = 2847065760.

The previous prime is 3331644403. The next prime is 3331644451. The reversal of 3331644421 is 1244461333.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3331644421 - 2¹³ = 3331636229 is a prime.

It is a super-2 number, since 2×3331644421² = 22199709095960850482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3331644451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 716640 + ... + 721273.

It is an arithmetic number, because the mean of its divisors is an integer number (477387448).

Almost surely, 2^3331644421 is an apocalyptic number.

It is an amenable number.

3331644421 is a deficient number, since it is larger than the sum of its proper divisors (487455163).

3331644421 is a wasteful number, since it uses less digits than its factorization.

3331644421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438251.

The product of its digits is 20736, while the sum is 31.

The square root of 3331644421 is about 57720.3986559345. The cubic root of 3331644421 is about 1493.5492495726.

The spelling of 3331644421 in words is "three billion, three hundred thirty-one million, six hundred forty-four thousand, four hundred twenty-one".