2078494840 has 32 divisors (see below), whose sum is σ = 4719528000. Its totient is φ = 823768704.

The previous prime is 2078494829. The next prime is 2078494841. The reversal of 2078494840 is 484948702.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2078494841) 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 7 ways as a sum of consecutive naturals, for example, 234000 + ... + 242719.

It is an arithmetic number, because the mean of its divisors is an integer number (147485250).

Almost surely, 2^2078494840 is an apocalyptic number.

2078494840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2078494840 is an abundant number, since it is smaller than the sum of its proper divisors (2641033160).

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

2078494840 is a wasteful number, since it uses less digits than its factorization.

2078494840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476839 (or 476835 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 46.

The square root of 2078494840 is about 45590.5126095331. The cubic root of 2078494840 is about 1276.1928787352.

The spelling of 2078494840 in words is "two billion, seventy-eight million, four hundred ninety-four thousand, eight hundred forty".