2102420412 has 36 divisors (see below), whose sum is σ = 5315899680. Its totient is φ = 700615872.

The previous prime is 2102420393. The next prime is 2102420417. The reversal of 2102420412 is 2140242012.

2102420412 is a `hidden beast` number, since 2 + 10 + 242 + 0 + 412 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102420417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 201664 + ... + 211832.

It is an arithmetic number, because the mean of its divisors is an integer number (147663880).

Almost surely, 2^2102420412 is an apocalyptic number.

It is an amenable number.

2102420412 is an abundant number, since it is smaller than the sum of its proper divisors (3213479268).

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

2102420412 is a wasteful number, since it uses less digits than its factorization.

2102420412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15922 (or 15917 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2102420412 is about 45852.1582043855. The cubic root of 2102420412 is about 1281.0709648485.

Adding to 2102420412 its reverse (2140242012), we get a palindrome (4242662424).

The spelling of 2102420412 in words is "two billion, one hundred two million, four hundred twenty thousand, four hundred twelve".