4000020002 has 8 divisors (see below), whose sum is σ = 6545487312. Its totient is φ = 1818190900.

The previous prime is 4000019987. The next prime is 4000020007. The reversal of 4000020002 is 2000200004.

It is a sphenic number, since it is the product of 3 distinct primes.

4000020002 is a modest number, since divided by 20002 gives 40 as remainder.

It is not an unprimeable number, because it can be changed into a prime (4000020007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90909524 + ... + 90909567.

It is an arithmetic number, because the mean of its divisors is an integer number (818185914).

Almost surely, 2^4000020002 is an apocalyptic number.

4000020002 is a deficient number, since it is larger than the sum of its proper divisors (2545467310).

4000020002 is a wasteful number, since it uses less digits than its factorization.

4000020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181819104.

The product of its (nonzero) digits is 16, while the sum is 8.

The square root of 4000020002 is about 63245.7113328643. The cubic root of 4000020002 is about 1587.4036978968.

Adding to 4000020002 its reverse (2000200004), we get a palindrome (6000220006).

The spelling of 4000020002 in words is "four billion, twenty thousand, two".