4056320 has 36 divisors (see below), whose sum is σ = 9719220. Its totient is φ = 1622016.

The previous prime is 4056287. The next prime is 4056359. The reversal of 4056320 is 236504.

It can be written as a sum of positive squares in 2 ways, for example, as 2458624 + 1597696 = 1568^2 + 1264^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4056292 and 4056301.

It is a congruent number.

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, 305 + ... + 2864.

Almost surely, 2^4056320 is an apocalyptic number.

4056320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4056320 is an abundant number, since it is smaller than the sum of its proper divisors (5662900).

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

4056320 is an equidigital number, since it uses as much as digits as its factorization.

4056320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3190 (or 3176 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 4056320 is about 2014.0307842732. The cubic root of 4056320 is about 159.4816558929.

The spelling of 4056320 in words is "four million, fifty-six thousand, three hundred twenty".