4012440445 has 16 divisors (see below), whose sum is σ = 5187761712. Its totient is φ = 2961630720.

The previous prime is 4012440409. The next prime is 4012440461. The reversal of 4012440445 is 5440442104.

It can be written as a sum of positive squares in 8 ways, for example, as 611524 + 4011828921 = 782^2 + 63339^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4012440445 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135585 + ... + 162505.

It is an arithmetic number, because the mean of its divisors is an integer number (324235107).

Almost surely, 2^4012440445 is an apocalyptic number.

It is an amenable number.

4012440445 is a deficient number, since it is larger than the sum of its proper divisors (1175321267).

4012440445 is a wasteful number, since it uses less digits than its factorization.

4012440445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29232.

The product of its (nonzero) digits is 10240, while the sum is 28.

The square root of 4012440445 is about 63343.8272051824. The cubic root of 4012440445 is about 1589.0450134666.

Adding to 4012440445 its reverse (5440442104), we get a palindrome (9452882549).

The spelling of 4012440445 in words is "four billion, twelve million, four hundred forty thousand, four hundred forty-five".