4215920 has 40 divisors (see below), whose sum is σ = 9895200. Its totient is φ = 1670400.

The previous prime is 4215919. The next prime is 4215941. The reversal of 4215920 is 295124.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11906 + ... + 12254.

It is an arithmetic number, because the mean of its divisors is an integer number (247380).

Almost surely, 2^4215920 is an apocalyptic number.

4215920 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 4215920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4947600).

4215920 is an abundant number, since it is smaller than the sum of its proper divisors (5679280).

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

4215920 is a wasteful number, since it uses less digits than its factorization.

4215920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513 (or 507 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 4215920 is about 2053.2705618111. The cubic root of 4215920 is about 161.5464630027.

The spelling of 4215920 in words is "four million, two hundred fifteen thousand, nine hundred twenty".