2499858432 has 156 divisors (see below), whose sum is σ = 7647609060. Its totient is φ = 784072704.

The previous prime is 2499858407. The next prime is 2499858451. The reversal of 2499858432 is 2348589942.

2499858432 is a `hidden beast` number, since 24 + 9 + 9 + 8 + 584 + 32 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1579585536 + 920272896 = 39744^2 + 30336^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 624694 + ... + 628682.

It is an arithmetic number, because the mean of its divisors is an integer number (49023135).

Almost surely, 2^2499858432 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 2499858432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3823804530).

2499858432 is an abundant number, since it is smaller than the sum of its proper divisors (5147750628).

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

2499858432 is a wasteful number, since it uses less digits than its factorization.

2499858432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4036 (or 4011 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The square root of 2499858432 is about 49998.5842999579. The cubic root of 2499858432 is about 1357.1831895023.

The spelling of 2499858432 in words is "two billion, four hundred ninety-nine million, eight hundred fifty-eight thousand, four hundred thirty-two".