4278021260 has 24 divisors (see below), whose sum is σ = 8987086080. Its totient is φ = 1710591104.

The previous prime is 4278021259. The next prime is 4278021269. The reversal of 4278021260 is 621208724.

It is not an unprimeable number, because it can be changed into a prime (4278021269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20432 + ... + 94728.

It is an arithmetic number, because the mean of its divisors is an integer number (374461920).

Almost surely, 2^4278021260 is an apocalyptic number.

It is an amenable number.

4278021260 is an abundant number, since it is smaller than the sum of its proper divisors (4709064820).

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

4278021260 is a wasteful number, since it uses less digits than its factorization.

4278021260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77185 (or 77183 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 4278021260 is about 65406.5842251375. The cubic root of 4278021260 is about 1623.3580271162.

Adding to 4278021260 its reverse (621208724), we get a palindrome (4899229984).

The spelling of 4278021260 in words is "four billion, two hundred seventy-eight million, twenty-one thousand, two hundred sixty".