4231420785 has 48 divisors (see below), whose sum is σ = 7955372880. Its totient is φ = 2072186880.

The previous prime is 4231420777. The next prime is 4231420793. The reversal of 4231420785 is 5870241324.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4231420777) and next prime (4231420793).

It can be written as a sum of positive squares in 8 ways, for example, as 578306304 + 3653114481 = 24048^2 + 60441^2 .

It is not a de Polignac number, because 4231420785 - 2³ = 4231420777 is a prime.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 36090 + ... + 98819.

It is an arithmetic number, because the mean of its divisors is an integer number (165736935).

Almost surely, 2^4231420785 is an apocalyptic number.

4231420785 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4231420785 is a deficient number, since it is larger than the sum of its proper divisors (3723952095).

4231420785 is a wasteful number, since it uses less digits than its factorization.

4231420785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134978 (or 134975 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 4231420785 is about 65049.3719031937. The cubic root of 4231420785 is about 1617.4420823853.

The spelling of 4231420785 in words is "four billion, two hundred thirty-one million, four hundred twenty thousand, seven hundred eighty-five".