3550353440 has 72 divisors (see below), whose sum is σ = 8910243972. Its totient is φ = 1336586240.

The previous prime is 3550353427. The next prime is 3550353451. The reversal of 3550353440 is 443530553.

It can be written as a sum of positive squares in 6 ways, for example, as 3257669776 + 292683664 = 57076^2 + 17108^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 3550353397 and 3550353406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7850 + ... + 84630.

Almost surely, 2^3550353440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3550353440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4455121986).

3550353440 is an abundant number, since it is smaller than the sum of its proper divisors (5359890532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3550353440 is a wasteful number, since it uses less digits than its factorization.

3550353440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76830 (or 76805 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 32.

The square root of 3550353440 is about 59584.8423678371. The cubic root of 3550353440 is about 1525.5409264449.

Adding to 3550353440 its reverse (443530553), we get a palindrome (3993883993).

The spelling of 3550353440 in words is "three billion, five hundred fifty million, three hundred fifty-three thousand, four hundred forty".