20223320040 has 192 divisors, whose sum is σ = 81943954560. Its totient is φ = 4202242560.

The previous prime is 20223320017. The next prime is 20223320041. The reversal of 20223320040 is 4002332202.

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

It is a junction number, because it is equal to n+sod(n) for n = 20223319995 and 20223320022.

It is not an unprimeable number, because it can be changed into a prime (20223320041) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 337059 + ... + 392498.

It is an arithmetic number, because the mean of its divisors is an integer number (426791430).

Almost surely, 2^20223320040 is an apocalyptic number.

20223320040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20223320040 is an abundant number, since it is smaller than the sum of its proper divisors (61720634520).

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

20223320040 is a wasteful number, since it uses less digits than its factorization.

20223320040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729592 (or 729585 counting only the distinct ones).

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

Adding to 20223320040 its reverse (4002332202), we get a palindrome (24225652242).

The spelling of 20223320040 in words is "twenty billion, two hundred twenty-three million, three hundred twenty thousand, forty".