4002402002 has 24 divisors (see below), whose sum is σ = 6229504512. Its totient is φ = 1926622800.

The previous prime is 4002401951. The next prime is 4002402023. The reversal of 4002402002 is 2002042004.

It is a happy number.

It is a super-2 number, since 2×4002402002² = 32038443571227216008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3250727 + ... + 3251957.

It is an arithmetic number, because the mean of its divisors is an integer number (259562688).

Almost surely, 2^4002402002 is an apocalyptic number.

4002402002 is a deficient number, since it is larger than the sum of its proper divisors (2227102510).

4002402002 is a wasteful number, since it uses less digits than its factorization.

4002402002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722 (or 1493 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 4002402002 is about 63264.5398465839. The cubic root of 4002402002 is about 1587.7187334292.

Adding to 4002402002 its reverse (2002042004), we get a palindrome (6004444006).

The spelling of 4002402002 in words is "four billion, two million, four hundred two thousand, two".