20210003244 has 36 divisors (see below), whose sum is σ = 51381710016. Its totient is φ = 6697725408.

The previous prime is 20210003221. The next prime is 20210003251. The reversal of 20210003244 is 44230001202.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×20210003244² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1616284 + ... + 1628739.

Almost surely, 2^20210003244 is an apocalyptic number.

It is an amenable number.

20210003244 is an abundant number, since it is smaller than the sum of its proper divisors (31171706772).

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

20210003244 is a wasteful number, since it uses less digits than its factorization.

20210003244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3245206 (or 3245201 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 20210003244 its reverse (44230001202), we get a palindrome (64440004446).

The spelling of 20210003244 in words is "twenty billion, two hundred ten million, three thousand, two hundred forty-four".