4405240 has 32 divisors (see below), whose sum is σ = 11328480. Its totient is φ = 1510272.

The previous prime is 4405231. The next prime is 4405243. The reversal of 4405240 is 425044.

It is a super-2 number, since 2×4405240² = 38812278915200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4405243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7587 + ... + 8146.

It is an arithmetic number, because the mean of its divisors is an integer number (354015).

Almost surely, 2^4405240 is an apocalyptic number.

4405240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4405240 is an abundant number, since it is smaller than the sum of its proper divisors (6923240).

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

4405240 is a wasteful number, since it uses less digits than its factorization.

4405240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15751 (or 15747 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 4405240 is about 2098.8663606814. The cubic root of 4405240 is about 163.9292774580.

The spelling of 4405240 in words is "four million, four hundred five thousand, two hundred forty".