2439978700 has 18 divisors (see below), whose sum is σ = 5294753996. Its totient is φ = 975991440.

The previous prime is 2439978683. The next prime is 2439978701. The reversal of 2439978700 is 78799342.

It is not an unprimeable number, because it can be changed into a prime (2439978701) 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 5 ways as a sum of consecutive naturals, for example, 12199794 + ... + 12199993.

Almost surely, 2^2439978700 is an apocalyptic number.

2439978700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2439978700 is an abundant number, since it is smaller than the sum of its proper divisors (2854775296).

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

2439978700 is a wasteful number, since it uses less digits than its factorization.

2439978700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24399801 (or 24399794 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 49.

The square root of 2439978700 is about 49396.1405374954. The cubic root of 2439978700 is about 1346.2591820367.

The spelling of 2439978700 in words is "two billion, four hundred thirty-nine million, nine hundred seventy-eight thousand, seven hundred".