20210002 has 16 divisors (see below), whose sum is σ = 30879072. Its totient is φ = 9918720.
The previous prime is 20209993. The next prime is 20210023. The reversal of 20210002 is 20001202.
It is a happy 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, 34738 + ... + 35314.
It is an arithmetic number, because the mean of its divisors is an integer number (1929942).
Almost surely, 220210002 is an apocalyptic number.
20210002 is a deficient number, since it is larger than the sum of its proper divisors (10669070).
20210002 is a wasteful number, since it uses less digits than its factorization.
20210002 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 873.
The product of its (nonzero) digits is 8, while the sum is 7.
The square root of 20210002 is about 4495.5535810398. The cubic root of 20210002 is about 272.3885109110.
Adding to 20210002 its reverse (20001202), we get a palindrome (40211204).
The spelling of 20210002 in words is "twenty million, two hundred ten thousand, two".
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