4395920 has 20 divisors (see below), whose sum is σ = 10220700. Its totient is φ = 1758336.

The previous prime is 4395917. The next prime is 4395949. The reversal of 4395920 is 295934.

It can be written as a sum of positive squares in 2 ways, for example, as 1478656 + 2917264 = 1216^2 + 1708^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×4395920² = 38648225292800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27395 + ... + 27554.

It is an arithmetic number, because the mean of its divisors is an integer number (511035).

Almost surely, 2^4395920 is an apocalyptic number.

4395920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4395920 is an abundant number, since it is smaller than the sum of its proper divisors (5824780).

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

4395920 is a wasteful number, since it uses less digits than its factorization.

4395920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54962 (or 54956 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 4395920 is about 2096.6449389441. The cubic root of 4395920 is about 163.8135895057.

The spelling of 4395920 in words is "four million, three hundred ninety-five thousand, nine hundred twenty".