2809056348 has 120 divisors (see below), whose sum is σ = 8682088800. Its totient is φ = 774893952.

The previous prime is 2809056343. The next prime is 2809056389. The reversal of 2809056348 is 8436509082.

2809056348 is a `hidden beast` number, since 2 + 8 + 0 + 9 + 0 + 5 + 634 + 8 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2809056343) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 44418 + ... + 87126.

It is an arithmetic number, because the mean of its divisors is an integer number (72350740).

Almost surely, 2^2809056348 is an apocalyptic number.

2809056348 is a gapful number since it is divisible by the number (28) 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 2809056348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4341044400).

2809056348 is an abundant number, since it is smaller than the sum of its proper divisors (5873032452).

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

2809056348 is a wasteful number, since it uses less digits than its factorization.

2809056348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42761 (or 42750 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 2809056348 is about 53000.5315822398. The cubic root of 2809056348 is about 1410.9777012574.

The spelling of 2809056348 in words is "two billion, eight hundred nine million, fifty-six thousand, three hundred forty-eight".