2799720378 has 192 divisors, whose sum is σ = 8180040960. Its totient is φ = 670795776.

The previous prime is 2799720373. The next prime is 2799720419. The reversal of 2799720378 is 8730279972.

It is not an unprimeable number, because it can be changed into a prime (2799720373) 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 95 ways as a sum of consecutive naturals, for example, 805801 + ... + 809267.

It is an arithmetic number, because the mean of its divisors is an integer number (42604380).

Almost surely, 2^2799720378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2799720378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4090020480).

2799720378 is an abundant number, since it is smaller than the sum of its proper divisors (5380320582).

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

2799720378 is a wasteful number, since it uses less digits than its factorization.

2799720378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3541 (or 3538 counting only the distinct ones).

The product of its (nonzero) digits is 2667168, while the sum is 54.

The square root of 2799720378 is about 52912.3839757764. The cubic root of 2799720378 is about 1409.4128262852.

The spelling of 2799720378 in words is "two billion, seven hundred ninety-nine million, seven hundred twenty thousand, three hundred seventy-eight".