20442402002 has 32 divisors (see below), whose sum is σ = 33800592384. Its totient is φ = 9195139600.

The previous prime is 20442401983. The next prime is 20442402017. The reversal of 20442402002 is 20020424402.

It is a super-2 number, since 2×20442402002² (a number of 21 digits) contains 22 as substring.

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, 2422763 + ... + 2431185.

It is an arithmetic number, because the mean of its divisors is an integer number (1056268512).

Almost surely, 2^20442402002 is an apocalyptic number.

20442402002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20442402002 is a deficient number, since it is larger than the sum of its proper divisors (13358190382).

20442402002 is a wasteful number, since it uses less digits than its factorization.

20442402002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9574.

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 20442402002 its reverse (20020424402), we get a palindrome (40462826404).

The spelling of 20442402002 in words is "twenty billion, four hundred forty-two million, four hundred two thousand, two".