2121062436 has 144 divisors (see below), whose sum is σ = 5877930240. Its totient is φ = 667699200.

The previous prime is 2121062429. The next prime is 2121062459. The reversal of 2121062436 is 6342601212.

2121062436 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 0 + 624 + 36 = 666.

2121062436 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1324036 + ... + 1325636.

It is an arithmetic number, because the mean of its divisors is an integer number (40818960).

Almost surely, 2^2121062436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2121062436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2938965120).

2121062436 is an abundant number, since it is smaller than the sum of its proper divisors (3756867804).

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

2121062436 is a wasteful number, since it uses less digits than its factorization.

2121062436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696 (or 1682 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2121062436 is about 46054.9936054713. The cubic root of 2121062436 is about 1284.8462191885.

Adding to 2121062436 its reverse (6342601212), we get a palindrome (8463663648).

The spelling of 2121062436 in words is "two billion, one hundred twenty-one million, sixty-two thousand, four hundred thirty-six".