4056240 has 40 divisors (see below), whose sum is σ = 12575088. Its totient is φ = 1081600.

The previous prime is 4056229. The next prime is 4056287. The reversal of 4056240 is 426504.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8211 + ... + 8690.

Almost surely, 2^4056240 is an apocalyptic number.

4056240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4056240 is an abundant number, since it is smaller than the sum of its proper divisors (8518848).

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

4056240 is a wasteful number, since it uses less digits than its factorization.

4056240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16917 (or 16911 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 4056240 is about 2014.0109235056. The cubic root of 4056240 is about 159.4806074371.

It can be divided in two parts, 40 and 56240, that added together give a triangular number (56280 = T₃₃₅).

The spelling of 4056240 in words is "four million, fifty-six thousand, two hundred forty".