20012010 has 32 divisors (see below), whose sum is σ = 48166272. Its totient is φ = 5321280.

The previous prime is 20011993. The next prime is 20012011. The reversal of 20012010 is 1021002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a self number, because there is not a number n which added to its sum of digits gives 20012010.

It is not an unprimeable number, because it can be changed into a prime (20012011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13107 + ... + 14553.

It is an arithmetic number, because the mean of its divisors is an integer number (1505196).

Almost surely, 2^20012010 is an apocalyptic number.

20012010 is an abundant number, since it is smaller than the sum of its proper divisors (28154262).

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

20012010 is a wasteful number, since it uses less digits than its factorization.

20012010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918.

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 20012010 is about 4473.4785122989. The cubic root of 20012010 is about 271.4960843800.

Adding to 20012010 its reverse (1021002), we get a palindrome (21033012).

The spelling of 20012010 in words is "twenty million, twelve thousand, ten".