403220023020 has 144 divisors (see below), whose sum is σ = 1256833337760. Its totient is φ = 104562966528.

The previous prime is 403220022973. The next prime is 403220023051. The reversal of 403220023020 is 20320022304.

403220023020 is a `hidden beast` number, since 40 + 322 + 0 + 0 + 2 + 302 + 0 = 666.

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 = 403220022984 and 403220023002.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13164844 + ... + 13195436.

It is an arithmetic number, because the mean of its divisors is an integer number (8728009290).

Almost surely, 2^403220023020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 403220023020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (628416668880).

403220023020 is an abundant number, since it is smaller than the sum of its proper divisors (853613314740).

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

403220023020 is a wasteful number, since it uses less digits than its factorization.

403220023020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32624 (or 32619 counting only the distinct ones).

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

Adding to 403220023020 its reverse (20320022304), we get a palindrome (423540045324).

The spelling of 403220023020 in words is "four hundred three billion, two hundred twenty million, twenty-three thousand, twenty".