2073857780 has 12 divisors (see below), whose sum is σ = 4355101380. Its totient is φ = 829543104.

The previous prime is 2073857743. The next prime is 2073857789. The reversal of 2073857780 is 877583702.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 349615204 + 1724242576 = 18698^2 + 41524^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2073857789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51846425 + ... + 51846464.

It is an arithmetic number, because the mean of its divisors is an integer number (362925115).

Almost surely, 2^2073857780 is an apocalyptic number.

2073857780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2073857780 is an abundant number, since it is smaller than the sum of its proper divisors (2281243600).

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

2073857780 is a wasteful number, since it uses less digits than its factorization.

2073857780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103692898 (or 103692896 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 47.

The square root of 2073857780 is about 45539.6286765714. The cubic root of 2073857780 is about 1275.2431226749.

The spelling of 2073857780 in words is "two billion, seventy-three million, eight hundred fifty-seven thousand, seven hundred eighty".