4491212385 has 32 divisors (see below), whose sum is σ = 7891862400. Its totient is φ = 2162931200.

The previous prime is 4491212311. The next prime is 4491212503. The reversal of 4491212385 is 5832121944.

It is not a de Polignac number, because 4491212385 - 2¹¹ = 4491210337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66756 + ... + 115925.

It is an arithmetic number, because the mean of its divisors is an integer number (246620700).

Almost surely, 2^4491212385 is an apocalyptic number.

It is an amenable number.

4491212385 is a deficient number, since it is larger than the sum of its proper divisors (3400650015).

4491212385 is a wasteful number, since it uses less digits than its factorization.

4491212385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182849.

The product of its digits is 69120, while the sum is 39.

The square root of 4491212385 is about 67016.5083020594. The cubic root of 4491212385 is about 1649.8882550586. Note that the first 3 decimals are identical.

The spelling of 4491212385 in words is "four billion, four hundred ninety-one million, two hundred twelve thousand, three hundred eighty-five".