2122004240 has 40 divisors (see below), whose sum is σ = 5103791640. Its totient is φ = 819531776.

The previous prime is 2122004237. The next prime is 2122004251. The reversal of 2122004240 is 424002212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22165264 + 2099838976 = 4708^2 + 45824^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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, 455009 + ... + 459648.

It is an arithmetic number, because the mean of its divisors is an integer number (127594791).

Almost surely, 2^2122004240 is an apocalyptic number.

2122004240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122004240 is an abundant number, since it is smaller than the sum of its proper divisors (2981787400).

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

2122004240 is a wasteful number, since it uses less digits than its factorization.

2122004240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914699 (or 914693 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 2122004240 is about 46065.2172468556. The cubic root of 2122004240 is about 1285.0363588455.

Adding to 2122004240 its reverse (424002212), we get a palindrome (2546006452).

The spelling of 2122004240 in words is "two billion, one hundred twenty-two million, four thousand, two hundred forty".