3521450000 has 60 divisors (see below), whose sum is σ = 8528086980. Its totient is φ = 1408560000.

The previous prime is 3521449979. The next prime is 3521450003. The reversal of 3521450000 is 541253.

It can be written as a sum of positive squares in 6 ways, for example, as 2912545024 + 608904976 = 53968^2 + 24676^2 .

It is a super-2 number, since 2×3521450000² = 24801220205000000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (3521450003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14786 + ... + 85214.

It is an arithmetic number, because the mean of its divisors is an integer number (142134783).

Almost surely, 2^3521450000 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 3521450000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4264043490).

3521450000 is an abundant number, since it is smaller than the sum of its proper divisors (5006636980).

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

3521450000 is an frugal number, since it uses more digits than its factorization.

3521450000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70462 (or 70436 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 3521450000 is about 59341.8065110930. The cubic root of 3521450000 is about 1521.3898299133.

Adding to 3521450000 its reverse (541253), we get a palindrome (3521991253).

The spelling of 3521450000 in words is "three billion, five hundred twenty-one million, four hundred fifty thousand".