28624707240 has 32 divisors (see below), whose sum is σ = 85874122080. Its totient is φ = 7633255232.

The previous prime is 28624707227. The next prime is 28624707257. The reversal of 28624707240 is 4270742682.

It is a junction number, because it is equal to n+sod(n) for n = 28624707192 and 28624707201.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 119269494 + ... + 119269733.

It is an arithmetic number, because the mean of its divisors is an integer number (2683566315).

Almost surely, 2^28624707240 is an apocalyptic number.

28624707240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28624707240 is an abundant number, since it is smaller than the sum of its proper divisors (57249414840).

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

28624707240 is a wasteful number, since it uses less digits than its factorization.

28624707240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238539241 (or 238539237 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 42.

The spelling of 28624707240 in words is "twenty-eight billion, six hundred twenty-four million, seven hundred seven thousand, two hundred forty".