2499145842 has 8 divisors (see below), whose sum is σ = 4998291696. Its totient is φ = 833048612.

The previous prime is 2499145841. The next prime is 2499145849. The reversal of 2499145842 is 2485419942.

It is a sphenic number, since it is the product of 3 distinct primes.

2499145842 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 2499145791 and 2499145800.

It is not an unprimeable number, because it can be changed into a prime (2499145841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208262148 + ... + 208262159.

It is an arithmetic number, because the mean of its divisors is an integer number (624786462).

Almost surely, 2^2499145842 is an apocalyptic number.

2499145842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2499145842 is a wasteful number, since it uses less digits than its factorization.

2499145842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416524312.

The product of its digits is 829440, while the sum is 48.

The square root of 2499145842 is about 49991.4576902894. The cubic root of 2499145842 is about 1357.0542212557.

The spelling of 2499145842 in words is "two billion, four hundred ninety-nine million, one hundred forty-five thousand, eight hundred forty-two".