2499281428 has 12 divisors (see below), whose sum is σ = 4998562912. Its totient is φ = 1071120600.

The previous prime is 2499281417. The next prime is 2499281429. The reversal of 2499281428 is 8241829942.

2499281428 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2499281429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44629998 + ... + 44630053.

Almost surely, 2^2499281428 is an apocalyptic number.

2499281428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2499281428 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.

2499281428 is a wasteful number, since it uses less digits than its factorization.

2499281428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89260062 (or 89260060 counting only the distinct ones).

The product of its digits is 663552, while the sum is 49.

The square root of 2499281428 is about 49992.8137635801. The cubic root of 2499281428 is about 1357.0787622040.

The spelling of 2499281428 in words is "two billion, four hundred ninety-nine million, two hundred eighty-one thousand, four hundred twenty-eight".