2120450442 has 32 divisors (see below), whose sum is σ = 4704860160. Its totient is φ = 631668720.

The previous prime is 2120450441. The next prime is 2120450467. The reversal of 2120450442 is 2440540212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2120450441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268378 + ... + 276165.

It is an arithmetic number, because the mean of its divisors is an integer number (147026880).

Almost surely, 2^2120450442 is an apocalyptic number.

2120450442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2120450442 is an abundant number, since it is smaller than the sum of its proper divisors (2584409718).

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

2120450442 is a wasteful number, since it uses less digits than its factorization.

2120450442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544618.

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 2120450442 is about 46048.3489606305. The cubic root of 2120450442 is about 1284.7226342967.

Adding to 2120450442 its reverse (2440540212), we get a palindrome (4560990654).

The spelling of 2120450442 in words is "two billion, one hundred twenty million, four hundred fifty thousand, four hundred forty-two".