2054040840 has 96 divisors (see below), whose sum is σ = 6756160320. Its totient is φ = 541137024.

The previous prime is 2054040839. The next prime is 2054040851. The reversal of 2054040840 is 480404502.

2054040840 is a `hidden beast` number, since 2 + 0 + 540 + 40 + 84 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4492 + ... + 64251.

It is an arithmetic number, because the mean of its divisors is an integer number (70376670).

Almost surely, 2^2054040840 is an apocalyptic number.

2054040840 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 2054040840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3378080160).

2054040840 is an abundant number, since it is smaller than the sum of its proper divisors (4702119480).

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

2054040840 is a wasteful number, since it uses less digits than its factorization.

2054040840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68843 (or 68836 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 2054040840 is about 45321.5273352521. The cubic root of 2054040840 is about 1271.1682143560.

The spelling of 2054040840 in words is "two billion, fifty-four million, forty thousand, eight hundred forty".