4405240520 has 16 divisors (see below), whose sum is σ = 9911791260. Its totient is φ = 1762096192.

The previous prime is 4405240507. The next prime is 4405240601. The reversal of 4405240520 is 250425044.

It can be written as a sum of positive squares in 2 ways, for example, as 4244001316 + 161239204 = 65146^2 + 12698^2 .

It is a super-3 number, since 3×4405240520³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 4405240520.

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, 55065467 + ... + 55065546.

Almost surely, 2^4405240520 is an apocalyptic number.

4405240520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4405240520 is an abundant number, since it is smaller than the sum of its proper divisors (5506550740).

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

4405240520 is a wasteful number, since it uses less digits than its factorization.

4405240520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110131024 (or 110131020 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 4405240520 is about 66371.9859579326. The cubic root of 4405240520 is about 1639.2928390810.

Adding to 4405240520 its reverse (250425044), we get a palindrome (4655665564).

The spelling of 4405240520 in words is "four billion, four hundred five million, two hundred forty thousand, five hundred twenty".