20442243310 has 8 divisors (see below), whose sum is σ = 36796037976. Its totient is φ = 8176897320.

The previous prime is 20442243307. The next prime is 20442243319. The reversal of 20442243310 is 1334224402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20442243310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20442243319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1022112156 + ... + 1022112175.

It is an arithmetic number, because the mean of its divisors is an integer number (4599504747).

Almost surely, 2^20442243310 is an apocalyptic number.

20442243310 is a deficient number, since it is larger than the sum of its proper divisors (16353794666).

20442243310 is a wasteful number, since it uses less digits than its factorization.

20442243310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044224338.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 20442243310 its reverse (1334224402), we get a palindrome (21776467712).

The spelling of 20442243310 in words is "twenty billion, four hundred forty-two million, two hundred forty-three thousand, three hundred ten".