2100459680 has 48 divisors (see below), whose sum is σ = 5413461984. Its totient is φ = 763802880.

The previous prime is 2100459637. The next prime is 2100459689. The reversal of 2100459680 is 869540012.

It is a self number, because there is not a number n which added to its sum of digits gives 2100459680.

It is not an unprimeable number, because it can be changed into a prime (2100459689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594962 + ... + 598481.

It is an arithmetic number, because the mean of its divisors is an integer number (112780458).

Almost surely, 2^2100459680 is an apocalyptic number.

2100459680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100459680 is an abundant number, since it is smaller than the sum of its proper divisors (3313002304).

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

2100459680 is a wasteful number, since it uses less digits than its factorization.

2100459680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193469 (or 1193461 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 2100459680 is about 45830.7721951093. The cubic root of 2100459680 is about 1280.6725957311.

Adding to 2100459680 its reverse (869540012), we get a palindrome (2969999692).

The spelling of 2100459680 in words is "two billion, one hundred million, four hundred fifty-nine thousand, six hundred eighty".