2499918120 has 256 divisors, whose sum is σ = 9831628800. Its totient is φ = 552925440.

The previous prime is 2499918101. The next prime is 2499918121. The reversal of 2499918120 is 218199942.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (2499918121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 229027 + ... + 239693.

It is an arithmetic number, because the mean of its divisors is an integer number (38404800).

Almost surely, 2^2499918120 is an apocalyptic number.

2499918120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2499918120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4915814400).

2499918120 is an abundant number, since it is smaller than the sum of its proper divisors (7331710680).

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

2499918120 is a wasteful number, since it uses less digits than its factorization.

2499918120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10725 (or 10715 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 2499918120 is about 49999.1811932956. The cubic root of 2499918120 is about 1357.1939910347.

The spelling of 2499918120 in words is "two billion, four hundred ninety-nine million, nine hundred eighteen thousand, one hundred twenty".