4212381385 has 8 divisors (see below), whose sum is σ = 5064563016. Its totient is φ = 3363434880.

The previous prime is 4212381367. The next prime is 4212381443. The reversal of 4212381385 is 5831832124.

It can be written as a sum of positive squares in 4 ways, for example, as 756470016 + 3455911369 = 27504^2 + 58787^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4212381385 - 2¹¹ = 4212379337 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 805914 + ... + 811123.

It is an arithmetic number, because the mean of its divisors is an integer number (633070377).

Almost surely, 2^4212381385 is an apocalyptic number.

It is an amenable number.

4212381385 is a deficient number, since it is larger than the sum of its proper divisors (852181631).

4212381385 is a wasteful number, since it uses less digits than its factorization.

4212381385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617563.

The product of its digits is 46080, while the sum is 37.

The square root of 4212381385 is about 64902.8611464857. The cubic root of 4212381385 is about 1615.0125256627.

The spelling of 4212381385 in words is "four billion, two hundred twelve million, three hundred eighty-one thousand, three hundred eighty-five".