4278423231 has 12 divisors (see below), whose sum is σ = 6180556200. Its totient is φ = 2851999920.

The previous prime is 4278423179. The next prime is 4278423239. The reversal of 4278423231 is 1323248724.

It is a happy number.

It is not a de Polignac number, because 4278423231 - 2⁹ = 4278422719 is a prime.

It is a super-2 number, since 2×4278423231² = 36609810687120958722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4278423239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116121 + ... + 148461.

It is an arithmetic number, because the mean of its divisors is an integer number (515046350).

Almost surely, 2^4278423231 is an apocalyptic number.

4278423231 is a deficient number, since it is larger than the sum of its proper divisors (1902132969).

4278423231 is a wasteful number, since it uses less digits than its factorization.

4278423231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47046 (or 47043 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 4278423231 is about 65409.6570163764. The cubic root of 4278423231 is about 1623.4088701246.

The spelling of 4278423231 in words is "four billion, two hundred seventy-eight million, four hundred twenty-three thousand, two hundred thirty-one".