4000423412 has 12 divisors (see below), whose sum is σ = 7001299620. Its totient is φ = 2000052096.

The previous prime is 4000423403. The next prime is 4000423417. The reversal of 4000423412 is 2143240004.

It can be written as a sum of positive squares in 2 ways, for example, as 2341979236 + 1658444176 = 48394^2 + 40724^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000423417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30158 + ... + 94394.

It is an arithmetic number, because the mean of its divisors is an integer number (583441635).

Almost surely, 2^4000423412 is an apocalyptic number.

It is an amenable number.

4000423412 is a deficient number, since it is larger than the sum of its proper divisors (3000876208).

4000423412 is a wasteful number, since it uses less digits than its factorization.

4000423412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79810 (or 79808 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 4000423412 is about 63248.9004805617. The cubic root of 4000423412 is about 1587.4570603799.

Adding to 4000423412 its reverse (2143240004), we get a palindrome (6143663416).

The spelling of 4000423412 in words is "four billion, four hundred twenty-three thousand, four hundred twelve".