1020422320 has 20 divisors (see below), whose sum is σ = 2372482080. Its totient is φ = 408168896.

The previous prime is 1020422317. The next prime is 1020422321. The reversal of 1020422320 is 232240201.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×1020422320² = 2082523422308364800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1020422294 and 1020422303.

It is not an unprimeable number, because it can be changed into a prime (1020422321) 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, 6377560 + ... + 6377719.

It is an arithmetic number, because the mean of its divisors is an integer number (118624104).

Almost surely, 2^1020422320 is an apocalyptic number.

1020422320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020422320 is an abundant number, since it is smaller than the sum of its proper divisors (1352059760).

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

1020422320 is a wasteful number, since it uses less digits than its factorization.

1020422320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12755292 (or 12755286 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1020422320 is about 31944.0498371762. The cubic root of 1020422320 is about 1006.7616174832.

Adding to 1020422320 its reverse (232240201), we get a palindrome (1252662521).

The spelling of 1020422320 in words is "one billion, twenty million, four hundred twenty-two thousand, three hundred twenty".