2100500440 has 32 divisors (see below), whose sum is σ = 4760635680. Its totient is φ = 834065152.

The previous prime is 2100500419. The next prime is 2100500489. The reversal of 2100500440 is 440050012.

It is a congruent number.

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, 186172 + ... + 197131.

It is an arithmetic number, because the mean of its divisors is an integer number (148769865).

Almost surely, 2^2100500440 is an apocalyptic number.

2100500440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100500440 is an abundant number, since it is smaller than the sum of its proper divisors (2660135240).

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

2100500440 is a wasteful number, since it uses less digits than its factorization.

2100500440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383451 (or 383447 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 2100500440 is about 45831.2168723459. The cubic root of 2100500440 is about 1280.6808796126.

Adding to 2100500440 its reverse (440050012), we get a palindrome (2540550452).

The spelling of 2100500440 in words is "two billion, one hundred million, five hundred thousand, four hundred forty".