4231420778 has 16 divisors (see below), whose sum is σ = 6937395360. Its totient is φ = 1923813936.

The previous prime is 4231420777. The next prime is 4231420793. The reversal of 4231420778 is 8770241324.

It is not an unprimeable number, because it can be changed into a prime (4231420777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1212788 + ... + 1216271.

It is an arithmetic number, because the mean of its divisors is an integer number (433587210).

Almost surely, 2^4231420778 is an apocalyptic number.

4231420778 is a deficient number, since it is larger than the sum of its proper divisors (2705974582).

4231420778 is a wasteful number, since it uses less digits than its factorization.

4231420778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2429141.

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 4231420778 is about 65049.3718493884. The cubic root of 4231420778 is about 1617.4420814934.

The spelling of 4231420778 in words is "four billion, two hundred thirty-one million, four hundred twenty thousand, seven hundred seventy-eight".