3541445220 has 48 divisors (see below), whose sum is σ = 9920510208. Its totient is φ = 943960320.

The previous prime is 3541445209. The next prime is 3541445221. The reversal of 3541445220 is 225441453.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (3541445221) 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, 134760 + ... + 158880.

It is an arithmetic number, because the mean of its divisors is an integer number (206677296).

Almost surely, 2^3541445220 is an apocalyptic number.

3541445220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3541445220 is an abundant number, since it is smaller than the sum of its proper divisors (6379064988).

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

3541445220 is a wasteful number, since it uses less digits than its factorization.

3541445220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26580 (or 26578 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 3541445220 is about 59510.0430179646. The cubic root of 3541445220 is about 1524.2639422020.

Adding to 3541445220 its reverse (225441453), we get a palindrome (3766886673).

The spelling of 3541445220 in words is "three billion, five hundred forty-one million, four hundred forty-five thousand, two hundred twenty".