10402042002 has 64 divisors (see below), whose sum is σ = 23642910720. Its totient is φ = 3022401600.

The previous prime is 10402041917. The next prime is 10402042003. The reversal of 10402042002 is 20024020401.

It is a super-2 number, since 2×10402042002² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10402042003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199693 + ... + 246335.

It is an arithmetic number, because the mean of its divisors is an integer number (369420480).

Almost surely, 2^10402042002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10402042002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11821455360).

10402042002 is an abundant number, since it is smaller than the sum of its proper divisors (13240868718).

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

10402042002 is a wasteful number, since it uses less digits than its factorization.

10402042002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46799.

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

Adding to 10402042002 its reverse (20024020401), we get a palindrome (30426062403).

The spelling of 10402042002 in words is "ten billion, four hundred two million, forty-two thousand, two".