2798250840 has 1152 divisors, whose sum is σ = 13099968000. Its totient is φ = 526901760.

The previous prime is 2798250823. The next prime is 2798250877. The reversal of 2798250840 is 480528972.

2798250840 is a `hidden beast` number, since 27 + 9 + 82 + 508 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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 287 ways as a sum of consecutive naturals, for example, 121663069 + ... + 121663091.

It is an arithmetic number, because the mean of its divisors is an integer number (11371500).

Almost surely, 2^2798250840 is an apocalyptic number.

2798250840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2798250840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6549984000).

2798250840 is an abundant number, since it is smaller than the sum of its proper divisors (10301717160).

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

2798250840 is a wasteful number, since it uses less digits than its factorization.

2798250840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 2798250840 is about 52898.4956307833. The cubic root of 2798250840 is about 1409.1661887748.

The spelling of 2798250840 in words is "two billion, seven hundred ninety-eight million, two hundred fifty thousand, eight hundred forty".