4077721242 has 48 divisors (see below), whose sum is σ = 10103825472. Its totient is φ = 1164300480.

The previous prime is 4077721217. The next prime is 4077721253. The reversal of 4077721242 is 2421277704.

It is a happy number.

4077721242 is a `hidden beast` number, since 407 + 7 + 7 + 2 + 1 + 242 = 666.

4077721242 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 4077721197 and 4077721206.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199017 + ... + 218547.

It is an arithmetic number, because the mean of its divisors is an integer number (210496364).

Almost surely, 2^4077721242 is an apocalyptic number.

4077721242 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

4077721242 is an abundant number, since it is smaller than the sum of its proper divisors (6026104230).

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

4077721242 is a wasteful number, since it uses less digits than its factorization.

4077721242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21203 (or 21200 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 36.

The square root of 4077721242 is about 63857.0375291557. The cubic root of 4077721242 is about 1597.6164041932.

Adding to 4077721242 its reverse (2421277704), we get a palindrome (6498998946).

The spelling of 4077721242 in words is "four billion, seventy-seven million, seven hundred twenty-one thousand, two hundred forty-two".