2499388416 has 528 divisors, whose sum is σ = 9104793984. Its totient is φ = 644087808.

The previous prime is 2499388387. The next prime is 2499388417. The reversal of 2499388416 is 6148839942.

2499388416 is a `hidden beast` number, since 249 + 9 + 388 + 4 + 16 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2499388417) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47158246 + ... + 47158298.

It is an arithmetic number, because the mean of its divisors is an integer number (17243928).

Almost surely, 2^2499388416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2499388416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4552396992).

2499388416 is an abundant number, since it is smaller than the sum of its proper divisors (6605405568).

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

2499388416 is a wasteful number, since it uses less digits than its factorization.

2499388416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 125 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The square root of 2499388416 is about 49993.8837859193. The cubic root of 2499388416 is about 1357.0981263125.

The spelling of 2499388416 in words is "two billion, four hundred ninety-nine million, three hundred eighty-eight thousand, four hundred sixteen".