2056494420 has 168 divisors, whose sum is σ = 6856703784. Its totient is φ = 516077568.

The previous prime is 2056494413. The next prime is 2056494439. The reversal of 2056494420 is 244946502.

2056494420 is a `hidden beast` number, since 2 + 0 + 5 + 649 + 4 + 4 + 2 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1095742404 + 960752016 = 33102^2 + 30996^2 .

It is a super-2 number, since 2×2056494420² = 8458338598982272800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 55 ways as a sum of consecutive naturals, for example, 243712 + ... + 252008.

It is an arithmetic number, because the mean of its divisors is an integer number (40813713).

Almost surely, 2^2056494420 is an apocalyptic number.

2056494420 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 2056494420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3428351892).

2056494420 is an abundant number, since it is smaller than the sum of its proper divisors (4800209364).

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

2056494420 is a wasteful number, since it uses less digits than its factorization.

2056494420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8341 (or 8324 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 2056494420 is about 45348.5878501194. The cubic root of 2056494420 is about 1271.6741555896.

The spelling of 2056494420 in words is "two billion, fifty-six million, four hundred ninety-four thousand, four hundred twenty".