2420400012 has 24 divisors (see below), whose sum is σ = 5662129200. Its totient is φ = 804724416.

The previous prime is 2420399981. The next prime is 2420400013. The reversal of 2420400012 is 2100040242.

It is a junction number, because it is equal to n+sod(n) for n = 2420399964 and 2420400000.

It is not an unprimeable number, because it can be changed into a prime (2420400013) 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, 254587 + ... + 263922.

It is an arithmetic number, because the mean of its divisors is an integer number (235922050).

Almost surely, 2^2420400012 is an apocalyptic number.

It is an amenable number.

2420400012 is an abundant number, since it is smaller than the sum of its proper divisors (3241729188).

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

2420400012 is a wasteful number, since it uses less digits than its factorization.

2420400012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518905 (or 518903 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 2420400012 is about 49197.5610371083. The cubic root of 2420400012 is about 1342.6486581183.

Adding to 2420400012 its reverse (2100040242), we get a palindrome (4520440254).

The spelling of 2420400012 in words is "two billion, four hundred twenty million, four hundred thousand, twelve".