20322302040 has 96 divisors (see below), whose sum is σ = 66227878080. Its totient is φ = 5404478976.

The previous prime is 20322302003. The next prime is 20322302041. The reversal of 20322302040 is 4020322302.

20322302040 is a `hidden beast` number, since 2 + 0 + 322 + 302 + 0 + 40 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20322302041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55212 + ... + 209028.

It is an arithmetic number, because the mean of its divisors is an integer number (689873730).

Almost surely, 2^20322302040 is an apocalyptic number.

20322302040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20322302040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33113939040).

20322302040 is an abundant number, since it is smaller than the sum of its proper divisors (45905576040).

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

20322302040 is a wasteful number, since it uses less digits than its factorization.

20322302040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154201 (or 154194 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 20322302040 its reverse (4020322302), we get a palindrome (24342624342).

The spelling of 20322302040 in words is "twenty billion, three hundred twenty-two million, three hundred two thousand, forty".