20100340244 has 12 divisors (see below), whose sum is σ = 35432352564. Its totient is φ = 9976810944.

The previous prime is 20100340237. The next prime is 20100340339. The reversal of 20100340244 is 44204300102.

It can be written as a sum of positive squares in 2 ways, for example, as 16829872900 + 3270467344 = 129730^2 + 57188^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18339179 + ... + 18340274.

It is an arithmetic number, because the mean of its divisors is an integer number (2952696047).

Almost surely, 2^20100340244 is an apocalyptic number.

It is an amenable number.

20100340244 is a deficient number, since it is larger than the sum of its proper divisors (15332012320).

20100340244 is a wasteful number, since it uses less digits than its factorization.

20100340244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36679594 (or 36679592 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20100340244 its reverse (44204300102), we get a palindrome (64304640346).

The spelling of 20100340244 in words is "twenty billion, one hundred million, three hundred forty thousand, two hundred forty-four".