4185947220 has 192 divisors, whose sum is σ = 14509393920. Its totient is φ = 878049792.

The previous prime is 4185947197. The next prime is 4185947231. The reversal of 4185947220 is 227495814.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 975199 + ... + 979481.

It is an arithmetic number, because the mean of its divisors is an integer number (75569760).

Almost surely, 2^4185947220 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 4185947220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7254696960).

4185947220 is an abundant number, since it is smaller than the sum of its proper divisors (10323446700).

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

4185947220 is a wasteful number, since it uses less digits than its factorization.

4185947220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4494 (or 4492 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 4185947220 is about 64698.8965902820. The cubic root of 4185947220 is about 1611.6271783824.

The spelling of 4185947220 in words is "four billion, one hundred eighty-five million, nine hundred forty-seven thousand, two hundred twenty".