2120644350 has 144 divisors (see below), whose sum is σ = 6250742784. Its totient is φ = 511176000.

The previous prime is 2120644333. The next prime is 2120644423. The reversal of 2120644350 is 534460212.

2120644350 is a `hidden beast` number, since 2 + 12 + 0 + 644 + 3 + 5 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 944329 + ... + 946571.

It is an arithmetic number, because the mean of its divisors is an integer number (43407936).

Almost surely, 2^2120644350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2120644350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3125371392).

2120644350 is an abundant number, since it is smaller than the sum of its proper divisors (4130098434).

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

2120644350 is a wasteful number, since it uses less digits than its factorization.

2120644350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2463 (or 2455 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2120644350 is about 46050.4543951523. The cubic root of 2120644350 is about 1284.7617942786.

It can be divided in two parts, 21206 and 44350, that added together give a palindrome (65556).

The spelling of 2120644350 in words is "two billion, one hundred twenty million, six hundred forty-four thousand, three hundred fifty".