20453444310 has 32 divisors (see below), whose sum is σ = 52864287840. Its totient is φ = 5034693888.

The previous prime is 20453444293. The next prime is 20453444329. The reversal of 20453444310 is 1344435402.

It is a super-2 number, since 2×20453444310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26221975 + ... + 26222754.

It is an arithmetic number, because the mean of its divisors is an integer number (1652008995).

Almost surely, 2^20453444310 is an apocalyptic number.

20453444310 is an abundant number, since it is smaller than the sum of its proper divisors (32410843530).

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

20453444310 is a wasteful number, since it uses less digits than its factorization.

20453444310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52444752.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 20453444310 its reverse (1344435402), we get a palindrome (21797879712).

The spelling of 20453444310 in words is "twenty billion, four hundred fifty-three million, four hundred forty-four thousand, three hundred ten".