4445120412 has 18 divisors (see below), whose sum is σ = 11236276688. Its totient is φ = 1481706792.

The previous prime is 4445120371. The next prime is 4445120419. The reversal of 4445120412 is 2140215444.

4445120412 is a `hidden beast` number, since 4 + 4 + 451 + 204 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4445120419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61737748 + ... + 61737819.

Almost surely, 2^4445120412 is an apocalyptic number.

It is an amenable number.

4445120412 is an abundant number, since it is smaller than the sum of its proper divisors (6791156276).

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

4445120412 is a wasteful number, since it uses less digits than its factorization.

4445120412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123475577 (or 123475572 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 4445120412 is about 66671.7362305797. The cubic root of 4445120412 is about 1644.2247326289.

Adding to 4445120412 its reverse (2140215444), we get a palindrome (6585335856).

The spelling of 4445120412 in words is "four billion, four hundred forty-five million, one hundred twenty thousand, four hundred twelve".