4021402012 has 6 divisors (see below), whose sum is σ = 7037453528. Its totient is φ = 2010701004.

The previous prime is 4021402009. The next prime is 4021402031. The reversal of 4021402012 is 2102041204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502675248 + ... + 502675255.

Almost surely, 2^4021402012 is an apocalyptic number.

It is an amenable number.

4021402012 is a deficient number, since it is larger than the sum of its proper divisors (3016051516).

4021402012 is a wasteful number, since it uses less digits than its factorization.

4021402012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005350507 (or 1005350505 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 4021402012 is about 63414.5252446157. The cubic root of 4021402012 is about 1590.2271489620.

Adding to 4021402012 its reverse (2102041204), we get a palindrome (6123443216).

The spelling of 4021402012 in words is "four billion, twenty-one million, four hundred two thousand, twelve".