2420212520 has 32 divisors (see below), whose sum is σ = 5940522720. Its totient is φ = 880077120.

The previous prime is 2420212517. The next prime is 2420212573. The reversal of 2420212520 is 252120242.

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 = 2420212492 and 2420212501.

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, 2749802 + ... + 2750681.

It is an arithmetic number, because the mean of its divisors is an integer number (185641335).

Almost surely, 2^2420212520 is an apocalyptic number.

2420212520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2420212520 is an abundant number, since it is smaller than the sum of its proper divisors (3520310200).

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

2420212520 is a wasteful number, since it uses less digits than its factorization.

2420212520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5500505 (or 5500501 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2420212520 is about 49195.6554992410. The cubic root of 2420212520 is about 1342.6139885896.

Adding to 2420212520 its reverse (252120242), we get a palindrome (2672332762).

The spelling of 2420212520 in words is "two billion, four hundred twenty million, two hundred twelve thousand, five hundred twenty".