2078680380 has 48 divisors (see below), whose sum is σ = 6651778560. Its totient is φ = 475126848.

The previous prime is 2078680379. The next prime is 2078680393. The reversal of 2078680380 is 830868702.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2474200 + ... + 2475039.

It is an arithmetic number, because the mean of its divisors is an integer number (138578720).

Almost surely, 2^2078680380 is an apocalyptic number.

2078680380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2078680380 is an abundant number, since it is smaller than the sum of its proper divisors (4573098180).

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

2078680380 is a wasteful number, since it uses less digits than its factorization.

2078680380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4949258 (or 4949256 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 2078680380 is about 45592.5474173137. The cubic root of 2078680380 is about 1276.2308513708.

The spelling of 2078680380 in words is "two billion, seventy-eight million, six hundred eighty thousand, three hundred eighty".