2489012100 has 81 divisors (see below), whose sum is σ = 7806364293. Its totient is φ = 663337440.

The previous prime is 2489012081. The next prime is 2489012101. The reversal of 2489012100 is 12109842.

The square root of 2489012100 is 49890.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 896044356 + 1592967744 = 29934^2 + 39912^2 .

It is not an unprimeable number, because it can be changed into a prime (2489012101) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1495869 + ... + 1497531.

Almost surely, 2^2489012100 is an apocalyptic number.

2489012100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

2489012100 is the 49890-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2489012100

2489012100 is an abundant number, since it is smaller than the sum of its proper divisors (5317352193).

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

2489012100 is a wasteful number, since it uses less digits than its factorization.

2489012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3346 (or 1673 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The cubic root of 2489012100 is about 1355.2175047873.

It can be divided in two parts, 248901 and 2100, that added together give a square (251001 = 501²).

The spelling of 2489012100 in words is "two billion, four hundred eighty-nine million, twelve thousand, one hundred".