2447720120 has 32 divisors (see below), whose sum is σ = 5556118320. Its totient is φ = 970421760.

The previous prime is 2447720113. The next prime is 2447720137. The reversal of 2447720120 is 210277442.

It is a congruent number.

It is an unprimeable number.

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, 266246 + ... + 275285.

Almost surely, 2^2447720120 is an apocalyptic number.

2447720120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2447720120 is an abundant number, since it is smaller than the sum of its proper divisors (3108398200).

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

2447720120 is a wasteful number, since it uses less digits than its factorization.

2447720120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541655 (or 541651 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 2447720120 is about 49474.4390569514. The cubic root of 2447720120 is about 1347.6814560764.

Adding to 2447720120 its reverse (210277442), we get a palindrome (2657997562).

The spelling of 2447720120 in words is "two billion, four hundred forty-seven million, seven hundred twenty thousand, one hundred twenty".