3550044421 has 16 divisors (see below), whose sum is σ = 4458349440. Its totient is φ = 2746068480.

The previous prime is 3550044419. The next prime is 3550044427. The reversal of 3550044421 is 1244400553.

It is a cyclic number.

It is not a de Polignac number, because 3550044421 - 2¹ = 3550044419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3550044421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3550044427) 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, 157716 + ... + 178813.

It is an arithmetic number, because the mean of its divisors is an integer number (278646840).

Almost surely, 2^3550044421 is an apocalyptic number.

It is an amenable number.

3550044421 is a deficient number, since it is larger than the sum of its proper divisors (908305019).

3550044421 is a wasteful number, since it uses less digits than its factorization.

3550044421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336684.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 3550044421 is about 59582.2492106500. The cubic root of 3550044421 is about 1525.4966646723.

Adding to 3550044421 its reverse (1244400553), we get a palindrome (4794444974).

The spelling of 3550044421 in words is "three billion, five hundred fifty million, forty-four thousand, four hundred twenty-one".