4005235412 has 12 divisors (see below), whose sum is σ = 7009613940. Its totient is φ = 2002488576.

The previous prime is 4005235357. The next prime is 4005235441. The reversal of 4005235412 is 2145325004.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1939169296 + 2066066116 = 44036^2 + 45454^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84218 + ... + 122894.

It is an arithmetic number, because the mean of its divisors is an integer number (584134495).

Almost surely, 2^4005235412 is an apocalyptic number.

It is an amenable number.

4005235412 is a deficient number, since it is larger than the sum of its proper divisors (3004378528).

4005235412 is a wasteful number, since it uses less digits than its factorization.

4005235412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64570 (or 64568 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 4005235412 is about 63286.9292350324. The cubic root of 4005235412 is about 1588.0933082451.

The spelling of 4005235412 in words is "four billion, five million, two hundred thirty-five thousand, four hundred twelve".