4012005270 has 256 divisors, whose sum is σ = 12659576832. Its totient is φ = 789626880.

The previous prime is 4012005229. The next prime is 4012005271. The reversal of 4012005270 is 725002104.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4012005271) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6357855 + ... + 6358485.

It is an arithmetic number, because the mean of its divisors is an integer number (49451472).

Almost surely, 2^4012005270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4012005270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6329788416).

4012005270 is an abundant number, since it is smaller than the sum of its proper divisors (8647571562).

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

4012005270 is a wasteful number, since it uses less digits than its factorization.

4012005270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 4012005270 is about 63340.3920890927. The cubic root of 4012005270 is about 1588.9875640020.

Adding to 4012005270 its reverse (725002104), we get a palindrome (4737007374).

The spelling of 4012005270 in words is "four billion, twelve million, five thousand, two hundred seventy".