4021269012 has 144 divisors (see below), whose sum is σ = 11284745472. Its totient is φ = 1201858560.

The previous prime is 4021269011. The next prime is 4021269107. The reversal of 4021269012 is 2109621204.

It is a super-2 number, since 2×4021269012² = 32341208933742912288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021269011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1077093 + ... + 1080819.

It is an arithmetic number, because the mean of its divisors is an integer number (78366288).

Almost surely, 2^4021269012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4021269012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5642372736).

4021269012 is an abundant number, since it is smaller than the sum of its proper divisors (7263476460).

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

4021269012 is a wasteful number, since it uses less digits than its factorization.

4021269012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3838 (or 3833 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 4021269012 is about 63413.4765802980. The cubic root of 4021269012 is about 1590.2096175520.

The spelling of 4021269012 in words is "four billion, twenty-one million, two hundred sixty-nine thousand, twelve".