4219171920 has 240 divisors, whose sum is σ = 15397824000. Its totient is φ = 1031408640.

The previous prime is 4219171919. The next prime is 4219171937. The reversal of 4219171920 is 291719124.

It is a tau number, because it is divible by the number of its divisors (240).

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, 419106 + ... + 429054.

It is an arithmetic number, because the mean of its divisors is an integer number (64157600).

Almost surely, 2^4219171920 is an apocalyptic number.

4219171920 is a gapful number since it is divisible by the number (40) 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 4219171920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7698912000).

4219171920 is an abundant number, since it is smaller than the sum of its proper divisors (11178652080).

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

4219171920 is a wasteful number, since it uses less digits than its factorization.

4219171920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10018 (or 10009 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 4219171920 is about 64955.1531443041. The cubic root of 4219171920 is about 1615.8798823407.

The spelling of 4219171920 in words is "four billion, two hundred nineteen million, one hundred seventy-one thousand, nine hundred twenty".