4002071412 has 12 divisors (see below), whose sum is σ = 9338166656. Its totient is φ = 1334023800.

The previous prime is 4002071401. The next prime is 4002071419. The reversal of 4002071412 is 2141702004.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4002071419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166752964 + ... + 166752987.

Almost surely, 2^4002071412 is an apocalyptic number.

It is an amenable number.

4002071412 is an abundant number, since it is smaller than the sum of its proper divisors (5336095244).

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

4002071412 is a wasteful number, since it uses less digits than its factorization.

4002071412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333505958 (or 333505956 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 4002071412 is about 63261.9270335642. The cubic root of 4002071412 is about 1587.6750181479.

Adding to 4002071412 its reverse (2141702004), we get a palindrome (6143773416).

The spelling of 4002071412 in words is "four billion, two million, seventy-one thousand, four hundred twelve".