20930010 has 32 divisors (see below), whose sum is σ = 50395392. Its totient is φ = 5563200.

The previous prime is 20929969. The next prime is 20930011. The reversal of 20930010 is 1003902.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (20930011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10060 + ... + 11960.

It is an arithmetic number, because the mean of its divisors is an integer number (1574856).

Almost surely, 2^20930010 is an apocalyptic number.

20930010 is an abundant number, since it is smaller than the sum of its proper divisors (29465382).

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

20930010 is a wasteful number, since it uses less digits than its factorization.

20930010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2278.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 20930010 is about 4574.9327863915. The cubic root of 20930010 is about 275.5855731573.

Adding to 20930010 its reverse (1003902), we get a palindrome (21933912).

The spelling of 20930010 in words is "twenty million, nine hundred thirty thousand, ten".