4278148628 has 12 divisors (see below), whose sum is σ = 8062664820. Its totient is φ = 1974530112.

The previous prime is 4278148619. The next prime is 4278148663. The reversal of 4278148628 is 8268418724.

It can be written as a sum of positive squares in 2 ways, for example, as 1220943364 + 3057205264 = 34942^2 + 55292^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41135993 + ... + 41136096.

It is an arithmetic number, because the mean of its divisors is an integer number (671888735).

Almost surely, 2^4278148628 is an apocalyptic number.

It is an amenable number.

4278148628 is a deficient number, since it is larger than the sum of its proper divisors (3784516192).

4278148628 is a wasteful number, since it uses less digits than its factorization.

4278148628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82272106 (or 82272104 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 50.

The square root of 4278148628 is about 65407.5578813336. The cubic root of 4278148628 is about 1623.3741375094.

The spelling of 4278148628 in words is "four billion, two hundred seventy-eight million, one hundred forty-eight thousand, six hundred twenty-eight".