4002122004 has 24 divisors (see below), whose sum is σ = 9536972928. Its totient is φ = 1305656640.

The previous prime is 4002121999. The next prime is 4002122023. The reversal of 4002122004 is 4002212004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3547417 + ... + 3548544.

It is an arithmetic number, because the mean of its divisors is an integer number (397373872).

Almost surely, 2^4002122004 is an apocalyptic number.

It is an amenable number.

4002122004 is an abundant number, since it is smaller than the sum of its proper divisors (5534850924).

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

4002122004 is a wasteful number, since it uses less digits than its factorization.

4002122004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7096015 (or 7096013 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 4002122004 is about 63262.3268936577. The cubic root of 4002122004 is about 1587.6817082931.

Adding to 4002122004 its reverse (4002212004), we get a palindrome (8004334008).

Subtracting 4002122004 from its reverse (4002212004), we obtain a square (90000 = 300²).

The spelling of 4002122004 in words is "four billion, two million, one hundred twenty-two thousand, four".