2788449300 has 648 divisors, whose sum is σ = 11332566336. Its totient is φ = 582266880.

The previous prime is 2788449277. The next prime is 2788449331. The reversal of 2788449300 is 39448872.

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 (13) of ones.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 28746852 + ... + 28746948.

Almost surely, 2^2788449300 is an apocalyptic number.

2788449300 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 2788449300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5666283168).

2788449300 is an abundant number, since it is smaller than the sum of its proper divisors (8544117036).

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

2788449300 is a wasteful number, since it uses less digits than its factorization.

2788449300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 2788449300 is about 52805.7695711368. The cubic root of 2788449300 is about 1407.5189505991.

The spelling of 2788449300 in words is "two billion, seven hundred eighty-eight million, four hundred forty-nine thousand, three hundred".