4001231412 has 48 divisors (see below), whose sum is σ = 10519689600. Its totient is φ = 1314956160.

The previous prime is 4001231387. The next prime is 4001231419. The reversal of 4001231412 is 2141321004.

4001231412 is a `hidden beast` number, since 400 + 123 + 141 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4001231419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253237 + ... + 268572.

It is an arithmetic number, because the mean of its divisors is an integer number (219160200).

Almost surely, 2^4001231412 is an apocalyptic number.

It is an amenable number.

4001231412 is an abundant number, since it is smaller than the sum of its proper divisors (6518458188).

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

4001231412 is a wasteful number, since it uses less digits than its factorization.

4001231412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521893 (or 521885 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 4001231412 is about 63255.2876208780. The cubic root of 4001231412 is about 1587.5639306471.

Adding to 4001231412 its reverse (2141321004), we get a palindrome (6142552416).

The spelling of 4001231412 in words is "four billion, one million, two hundred thirty-one thousand, four hundred twelve".