2103022440 has 80 divisors (see below), whose sum is σ = 7068502980. Its totient is φ = 560805120.

The previous prime is 2103022433. The next prime is 2103022487. The reversal of 2103022440 is 442203012.

It can be written as a sum of positive squares in 2 ways, for example, as 1724408676 + 378613764 = 41526^2 + 19458^2 .

It is a super-3 number, since 3×2103022440³ (a number of 29 digits) contains 333 as substring.

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

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 321301 + ... + 327780.

Almost surely, 2^2103022440 is an apocalyptic number.

2103022440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2103022440 is an abundant number, since it is smaller than the sum of its proper divisors (4965480540).

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

2103022440 is a wasteful number, since it uses less digits than its factorization.

2103022440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649104 (or 649091 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2103022440 is about 45858.7226163137. The cubic root of 2103022440 is about 1281.1932313852.

Adding to 2103022440 its reverse (442203012), we get a palindrome (2545225452).

The spelling of 2103022440 in words is "two billion, one hundred three million, twenty-two thousand, four hundred forty".