4002052040 has 64 divisors (see below), whose sum is σ = 10444636800. Its totient is φ = 1351646208.

The previous prime is 4002052031. The next prime is 4002052051. The reversal of 4002052040 is 402502004.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87905 + ... + 125424.

It is an arithmetic number, because the mean of its divisors is an integer number (163197450).

Almost surely, 2^4002052040 is an apocalyptic number.

4002052040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4002052040 is an abundant number, since it is smaller than the sum of its proper divisors (6442584760).

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

4002052040 is a wasteful number, since it uses less digits than its factorization.

4002052040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213414 (or 213410 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 4002052040 is about 63261.7739239108. The cubic root of 4002052040 is about 1587.6724564336.

Adding to 4002052040 its reverse (402502004), we get a palindrome (4404554044).

The spelling of 4002052040 in words is "four billion, two million, fifty-two thousand, forty", and thus it is an eban number.