3634019220 has 96 divisors (see below), whose sum is σ = 11064598272. Its totient is φ = 885823488.

The previous prime is 3634019219. The next prime is 3634019227. The reversal of 3634019220 is 229104363.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3634019227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57724 + ... + 102956.

It is an arithmetic number, because the mean of its divisors is an integer number (115256232).

Almost surely, 2^3634019220 is an apocalyptic number.

3634019220 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 3634019220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5532299136).

3634019220 is an abundant number, since it is smaller than the sum of its proper divisors (7430579052).

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

3634019220 is a wasteful number, since it uses less digits than its factorization.

3634019220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45361 (or 45359 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 3634019220 is about 60282.8269078350. The cubic root of 3634019220 is about 1537.4313761426.

The spelling of 3634019220 in words is "three billion, six hundred thirty-four million, nineteen thousand, two hundred twenty".