4445012100 has 72 divisors (see below), whose sum is σ = 13617440928. Its totient is φ = 1115609600.

The previous prime is 4445012081. The next prime is 4445012101. The reversal of 4445012100 is 12105444.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4445012101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 430686 + ... + 440885.

It is an arithmetic number, because the mean of its divisors is an integer number (189131124).

Almost surely, 2^4445012100 is an apocalyptic number.

It is an amenable number.

4445012100 is an abundant number, since it is smaller than the sum of its proper divisors (9172428828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4445012100 is a wasteful number, since it uses less digits than its factorization.

4445012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871605 (or 871598 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 4445012100 is about 66670.9239474000. The cubic root of 4445012100 is about 1644.2113778563.

Adding to 4445012100 its reverse (12105444), we get a palindrome (4457117544).

The spelling of 4445012100 in words is "four billion, four hundred forty-five million, twelve thousand, one hundred".