3554564220 has 144 divisors (see below), whose sum is σ = 11181512160. Its totient is φ = 912941568.

The previous prime is 3554564207. The next prime is 3554564231. The reversal of 3554564220 is 224654553.

3554564220 is a `hidden beast` number, since 3 + 5 + 5 + 4 + 5 + 642 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3564762 + ... + 3565758.

It is an arithmetic number, because the mean of its divisors is an integer number (77649390).

Almost surely, 2^3554564220 is an apocalyptic number.

3554564220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3554564220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5590756080).

3554564220 is an abundant number, since it is smaller than the sum of its proper divisors (7626947940).

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

3554564220 is a wasteful number, since it uses less digits than its factorization.

3554564220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1724 (or 1719 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The square root of 3554564220 is about 59620.1662191578. The cubic root of 3554564220 is about 1526.1437940614.

The spelling of 3554564220 in words is "three billion, five hundred fifty-four million, five hundred sixty-four thousand, two hundred twenty".